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Re: [PATCH] tools: ffs-aio-example: free memory upon failure

Started by"Wei, Jiangang" <weijg.fnst@cn.fujitsu.com>
First post2015-11-18 07:20 +0100
Last post2015-11-19 10:40 +0100
Articles 4 — 3 participants

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  Re: [PATCH] tools: ffs-aio-example: free memory upon failure "Wei, Jiangang" <weijg.fnst@cn.fujitsu.com> - 2015-11-18 07:20 +0100
    Re: [PATCH] tools: ffs-aio-example: free memory upon failure Robert Baldyga <r.baldyga@samsung.com> - 2015-11-18 10:50 +0100
      [PATCH v2] tools: ffs-aio-example: clean up upon failure Wei Jiangang <weijg.fnst@cn.fujitsu.com> - 2015-11-19 10:30 +0100
      Re: [PATCH] tools: ffs-aio-example: free memory upon failure "Wei, Jiangang" <weijg.fnst@cn.fujitsu.com> - 2015-11-19 10:40 +0100

#1271860 — Re: [PATCH] tools: ffs-aio-example: free memory upon failure

From"Wei, Jiangang" <weijg.fnst@cn.fujitsu.com>
Date2015-11-18 07:20 +0100
SubjectRe: [PATCH] tools: ffs-aio-example: free memory upon failure
Message-ID<qw4g1-7vR-11@gated-at.bofh.it>
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#1272058

FromRobert Baldyga <r.baldyga@samsung.com>
Date2015-11-18 10:50 +0100
Message-ID<qw7xg-17g-21@gated-at.bofh.it>
In reply to#1271860
Hi Wei,

On 11/18/2015 07:13 AM, Wei, Jiangang wrote:
> To whom it may concern：
> 
> Sorry to bother again,
> But any comment about this patch？
> 

Reviewed-by: Robert Baldyga <r.baldyga@samsung.com>

It looks good to me. By the way, maybe we should also close file
descriptors in error path?

Thanks,
Robert Baldyga

> On Mon, 2015-11-09 at 14:16 +0800, Wei Jiangang wrote:
>> Free buffer to avoid memory leak upon failure occurs.
>>
>> Signed-off-by: Wei Jiangang <weijg.fnst@cn.fujitsu.com>
>> ---
>>  tools/usb/ffs-aio-example/multibuff/device_app/aio_multibuff.c | 4 ++++
>>  tools/usb/ffs-aio-example/simple/device_app/aio_simple.c       | 4 ++++
>>  2 files changed, 8 insertions(+)
>>
>> diff --git a/tools/usb/ffs-aio-example/multibuff/device_app/aio_multibuff.c b/tools/usb/ffs-aio-example/multibuff/device_app/aio_multibuff.c
>> index aaca1f44e788..3eb1a92baacf 100644
>> --- a/tools/usb/ffs-aio-example/multibuff/device_app/aio_multibuff.c
>> +++ b/tools/usb/ffs-aio-example/multibuff/device_app/aio_multibuff.c
>> @@ -263,20 +263,24 @@ int main(int argc, char *argv[])
>>  	sprintf(ep_path, "%s/ep0", argv[1]);
>>  	ep0 = open(ep_path, O_RDWR);
>>  	if (ep0 < 0) {
>> +		free(ep_path);
>>  		perror("unable to open ep0");
>>  		return 1;
>>  	}
>>  	if (write(ep0, &descriptors, sizeof(descriptors)) < 0) {
>> +		free(ep_path);
>>  		perror("unable do write descriptors");
>>  		return 1;
>>  	}
>>  	if (write(ep0, &strings, sizeof(strings)) < 0) {
>> +		free(ep_path);
>>  		perror("unable to write strings");
>>  		return 1;
>>  	}
>>  	sprintf(ep_path, "%s/ep1", argv[1]);
>>  	ep1 = open(ep_path, O_RDWR);
>>  	if (ep1 < 0) {
>> +		free(ep_path);
>>  		perror("unable to open ep1");
>>  		return 1;
>>  	}
>> diff --git a/tools/usb/ffs-aio-example/simple/device_app/aio_simple.c b/tools/usb/ffs-aio-example/simple/device_app/aio_simple.c
>> index 1f44a29818bf..ac96892ca5d2 100644
>> --- a/tools/usb/ffs-aio-example/simple/device_app/aio_simple.c
>> +++ b/tools/usb/ffs-aio-example/simple/device_app/aio_simple.c
>> @@ -234,14 +234,17 @@ int main(int argc, char *argv[])
>>  	sprintf(ep_path, "%s/ep0", argv[1]);
>>  	ep0 = open(ep_path, O_RDWR);
>>  	if (ep0 < 0) {
>> +		free(ep_path);
>>  		perror("unable to open ep0");
>>  		return 1;
>>  	}
>>  	if (write(ep0, &descriptors, sizeof(descriptors)) < 0) {
>> +		free(ep_path);
>>  		perror("unable do write descriptors");
>>  		return 1;
>>  	}
>>  	if (write(ep0, &strings, sizeof(strings)) < 0) {
>> +		free(ep_path);
>>  		perror("unable to write strings");
>>  		return 1;
>>  	}
>> @@ -249,6 +252,7 @@ int main(int argc, char *argv[])
>>  		sprintf(ep_path, "%s/ep%d", argv[1], i+1);
>>  		ep[i] = open(ep_path, O_RDWR);
>>  		if (ep[i] < 0) {
>> +			free(ep_path);
>>  			printf("unable to open ep%d: %s\n", i+1,
>>  			       strerror(errno));
>>  			return 1;
> 

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#1272958 — [PATCH v2] tools: ffs-aio-example: clean up upon failure

FromWei Jiangang <weijg.fnst@cn.fujitsu.com>
Date2015-11-19 10:30 +0100
Subject[PATCH v2] tools: ffs-aio-example: clean up upon failure
Message-ID<qwtHs-7r8-9@gated-at.bofh.it>
In reply to#1272058
Free buffer to avoid memory leak and close fd upon failure occurs.

Signed-off-by: Wei Jiangang <weijg.fnst@cn.fujitsu.com>
---
 tools/usb/ffs-aio-example/multibuff/device_app/aio_multibuff.c | 6 ++++++
 tools/usb/ffs-aio-example/simple/device_app/aio_simple.c       | 6 ++++++
 2 files changed, 12 insertions(+)

diff --git a/tools/usb/ffs-aio-example/multibuff/device_app/aio_multibuff.c b/tools/usb/ffs-aio-example/multibuff/device_app/aio_multibuff.c
index aaca1f44e788..c08b1b0f7a6b 100644
--- a/tools/usb/ffs-aio-example/multibuff/device_app/aio_multibuff.c
+++ b/tools/usb/ffs-aio-example/multibuff/device_app/aio_multibuff.c
@@ -263,20 +263,26 @@ int main(int argc, char *argv[])
 	sprintf(ep_path, "%s/ep0", argv[1]);
 	ep0 = open(ep_path, O_RDWR);
 	if (ep0 < 0) {
+		free(ep_path);
 		perror("unable to open ep0");
 		return 1;
 	}
 	if (write(ep0, &descriptors, sizeof(descriptors)) < 0) {
+		close(ep0);
+		free(ep_path);
 		perror("unable do write descriptors");
 		return 1;
 	}
 	if (write(ep0, &strings, sizeof(strings)) < 0) {
+		close(ep0);
+		free(ep_path);
 		perror("unable to write strings");
 		return 1;
 	}
 	sprintf(ep_path, "%s/ep1", argv[1]);
 	ep1 = open(ep_path, O_RDWR);
 	if (ep1 < 0) {
+		free(ep_path);
 		perror("unable to open ep1");
 		return 1;
 	}
diff --git a/tools/usb/ffs-aio-example/simple/device_app/aio_simple.c b/tools/usb/ffs-aio-example/simple/device_app/aio_simple.c
index 1f44a29818bf..9ff657ed0bec 100644
--- a/tools/usb/ffs-aio-example/simple/device_app/aio_simple.c
+++ b/tools/usb/ffs-aio-example/simple/device_app/aio_simple.c
@@ -234,14 +234,19 @@ int main(int argc, char *argv[])
 	sprintf(ep_path, "%s/ep0", argv[1]);
 	ep0 = open(ep_path, O_RDWR);
 	if (ep0 < 0) {
+		free(ep_path);
 		perror("unable to open ep0");
 		return 1;
 	}
 	if (write(ep0, &descriptors, sizeof(descriptors)) < 0) {
+		close(ep0);
+		free(ep_path);
 		perror("unable do write descriptors");
 		return 1;
 	}
 	if (write(ep0, &strings, sizeof(strings)) < 0) {
+		close(ep0);
+		free(ep_path);
 		perror("unable to write strings");
 		return 1;
 	}
@@ -249,6 +254,7 @@ int main(int argc, char *argv[])
 		sprintf(ep_path, "%s/ep%d", argv[1], i+1);
 		ep[i] = open(ep_path, O_RDWR);
 		if (ep[i] < 0) {
+			free(ep_path);
 			printf("unable to open ep%d: %s\n", i+1,
 			       strerror(errno));
 			return 1;
-- 
1.9.3

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#1272963

From"Wei, Jiangang" <weijg.fnst@cn.fujitsu.com>
Date2015-11-19 10:40 +0100
Message-ID<qwtR9-7uw-23@gated-at.bofh.it>
In reply to#1272058
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