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Groups > linux.kernel > #1725578 > unrolled thread

[PATCH 0/7] [media] Mantis: Adjustments for three function implementations

Started bySF Markus Elfring <elfring@users.sourceforge.net>
First post2017-09-02 22:50 +0200
Last post2017-09-02 22:50 +0200
Articles 4 — 1 participant

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  [PATCH 0/7] [media] Mantis: Adjustments for three function  implementations SF Markus Elfring <elfring@users.sourceforge.net> - 2017-09-02 22:50 +0200
    [PATCH 6/7] [media] Mantis: Improve a size determination in  mantis_pci_probe() SF Markus Elfring <elfring@users.sourceforge.net> - 2017-09-02 22:50 +0200
    [PATCH 2/7] [media] Hopper: Improve a size determination in  hopper_pci_probe() SF Markus Elfring <elfring@users.sourceforge.net> - 2017-09-02 22:50 +0200
    [PATCH 4/7] [media] Hopper: Delete an unnecessary variable  initialisation in hopper_pci_probe() SF Markus Elfring <elfring@users.sourceforge.net> - 2017-09-02 22:50 +0200

#1725578 — [PATCH 0/7] [media] Mantis: Adjustments for three function implementations

FromSF Markus Elfring <elfring@users.sourceforge.net>
Date2017-09-02 22:50 +0200
Subject[PATCH 0/7] [media] Mantis: Adjustments for three function implementations
Message-ID<ulnwC-7AM-3@gated-at.bofh.it>
From: Markus Elfring <elfring@users.sourceforge.net>
Date: Sat, 2 Sep 2017 22:18:22 +0200

A few update suggestions were taken into account
from static source code analysis.

Markus Elfring (7):
  Delete an error message for a failed memory allocation in hopper_pci_probe()
  Improve a size determination in hopper_pci_probe()
  Adjust a null pointer check in two functions
  Delete an unnecessary variable initialisation in hopper_pci_probe()
  Delete an error message for a failed memory allocation in mantis_pci_probe()
  Improve a size determination in mantis_pci_probe()
  Delete an unnecessary variable initialisation in mantis_pci_probe()

 drivers/media/pci/mantis/hopper_cards.c | 9 ++++-----
 drivers/media/pci/mantis/mantis_cards.c | 8 +++-----
 2 files changed, 7 insertions(+), 10 deletions(-)

-- 
2.14.1

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#1725579 — [PATCH 6/7] [media] Mantis: Improve a size determination in mantis_pci_probe()

FromSF Markus Elfring <elfring@users.sourceforge.net>
Date2017-09-02 22:50 +0200
Subject[PATCH 6/7] [media] Mantis: Improve a size determination in mantis_pci_probe()
Message-ID<ulnwC-7AM-13@gated-at.bofh.it>
In reply to#1725578
From: Markus Elfring <elfring@users.sourceforge.net>
Date: Sat, 2 Sep 2017 21:56:07 +0200

Replace the specification of a data structure by a pointer dereference
as the parameter for the operator "sizeof" to make the corresponding size
determination a bit safer according to the Linux coding style convention.

This issue was detected by using the Coccinelle software.

Signed-off-by: Markus Elfring <elfring@users.sourceforge.net>
---
 drivers/media/pci/mantis/mantis_cards.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/media/pci/mantis/mantis_cards.c b/drivers/media/pci/mantis/mantis_cards.c
index 56a01f6f84c7..6182ae44dd23 100644
--- a/drivers/media/pci/mantis/mantis_cards.c
+++ b/drivers/media/pci/mantis/mantis_cards.c
@@ -173,5 +173,5 @@ static int mantis_pci_probe(struct pci_dev *pdev,
 	struct mantis_hwconfig *config;
 	int err = 0;
 
-	mantis = kzalloc(sizeof(struct mantis_pci), GFP_KERNEL);
+	mantis = kzalloc(sizeof(*mantis), GFP_KERNEL);
 	if (!mantis)
-- 
2.14.1

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#1725580 — [PATCH 2/7] [media] Hopper: Improve a size determination in hopper_pci_probe()

FromSF Markus Elfring <elfring@users.sourceforge.net>
Date2017-09-02 22:50 +0200
Subject[PATCH 2/7] [media] Hopper: Improve a size determination in hopper_pci_probe()
Message-ID<ulnwC-7AM-15@gated-at.bofh.it>
In reply to#1725578
From: Markus Elfring <elfring@users.sourceforge.net>
Date: Sat, 2 Sep 2017 21:21:22 +0200

Replace the specification of a data structure by a pointer dereference
as the parameter for the operator "sizeof" to make the corresponding size
determination a bit safer according to the Linux coding style convention.

This issue was detected by using the Coccinelle software.

Signed-off-by: Markus Elfring <elfring@users.sourceforge.net>
---
 drivers/media/pci/mantis/hopper_cards.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/media/pci/mantis/hopper_cards.c b/drivers/media/pci/mantis/hopper_cards.c
index cc1bb04d8cb4..fe7b40c306f7 100644
--- a/drivers/media/pci/mantis/hopper_cards.c
+++ b/drivers/media/pci/mantis/hopper_cards.c
@@ -163,7 +163,7 @@ static int hopper_pci_probe(struct pci_dev *pdev,
 	struct mantis_hwconfig *config;
 	int err = 0;
 
-	mantis = kzalloc(sizeof(struct mantis_pci), GFP_KERNEL);
+	mantis = kzalloc(sizeof(*mantis), GFP_KERNEL);
 	if (mantis == NULL) {
 		err = -ENOMEM;
 		goto fail0;
-- 
2.14.1

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#1725581 — [PATCH 4/7] [media] Hopper: Delete an unnecessary variable initialisation in hopper_pci_probe()

FromSF Markus Elfring <elfring@users.sourceforge.net>
Date2017-09-02 22:50 +0200
Subject[PATCH 4/7] [media] Hopper: Delete an unnecessary variable initialisation in hopper_pci_probe()
Message-ID<ulnwC-7AM-17@gated-at.bofh.it>
In reply to#1725578
From: Markus Elfring <elfring@users.sourceforge.net>
Date: Sat, 2 Sep 2017 21:50:55 +0200

The variable "err" will be set to an appropriate value a bit later.
Thus omit the explicit initialisation at the beginning.

Signed-off-by: Markus Elfring <elfring@users.sourceforge.net>
---
 drivers/media/pci/mantis/hopper_cards.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/media/pci/mantis/hopper_cards.c b/drivers/media/pci/mantis/hopper_cards.c
index 88e5b2a97005..3826be19c156 100644
--- a/drivers/media/pci/mantis/hopper_cards.c
+++ b/drivers/media/pci/mantis/hopper_cards.c
@@ -161,6 +161,6 @@ static int hopper_pci_probe(struct pci_dev *pdev,
 	struct mantis_pci_drvdata *drvdata;
 	struct mantis_pci *mantis;
 	struct mantis_hwconfig *config;
-	int err = 0;
+	int err;
 
 	mantis = kzalloc(sizeof(*mantis), GFP_KERNEL);
-- 
2.14.1

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