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[PATCH 2/6] firmware-qemu_fw_cfg: Improve a size determination in fw_cfg_register_file()

From SF Markus Elfring <elfring@users.sourceforge.net>
Newsgroups linux.kernel
Subject [PATCH 2/6] firmware-qemu_fw_cfg: Improve a size determination in fw_cfg_register_file()
Date 2016-09-18 15:00 +0200
Message-ID <siJRn-8eJ-17@gated-at.bofh.it> (permalink)
References <qEuGl-43C-5@gated-at.bofh.it> <siJHH-8bB-9@gated-at.bofh.it>
Organization linux.* mail to news gateway

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From: Markus Elfring <elfring@users.sourceforge.net>
Date: Sun, 18 Sep 2016 10:43:27 +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.

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

diff --git a/drivers/firmware/qemu_fw_cfg.c b/drivers/firmware/qemu_fw_cfg.c
index e69653e..a229df6 100644
--- a/drivers/firmware/qemu_fw_cfg.c
+++ b/drivers/firmware/qemu_fw_cfg.c
@@ -458,7 +458,7 @@ static int fw_cfg_register_file(const struct fw_cfg_file *f)
 		return -ENOMEM;
 
 	/* set file entry information */
-	memcpy(&entry->f, f, sizeof(struct fw_cfg_file));
+	memcpy(&entry->f, f, sizeof(*f));
 
 	/* register entry under "/sys/firmware/qemu_fw_cfg/by_key/" */
 	err = kobject_init_and_add(&entry->kobj, &fw_cfg_sysfs_entry_ktype,
-- 
2.10.0

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Thread

[PATCH 0/6] firmware-qemu_fw_cfg: Fine-tuning for four function  implementations SF Markus Elfring <elfring@users.sourceforge.net> - 2016-09-18 14:50 +0200
  [PATCH 3/6] firmware-qemu_fw_cfg: Rename jump labels in  fw_cfg_register_file() SF Markus Elfring <elfring@users.sourceforge.net> - 2016-09-18 15:00 +0200
  [PATCH 6/6] firmware-qemu_fw_cfg: Move a variable assignment in  fw_cfg_sysfs_probe() SF Markus Elfring <elfring@users.sourceforge.net> - 2016-09-18 15:00 +0200
  [PATCH 1/6] firmware-qemu_fw_cfg: Use kmalloc_array() in  fw_cfg_register_dir_entries() SF Markus Elfring <elfring@users.sourceforge.net> - 2016-09-18 15:00 +0200
  [PATCH 2/6] firmware-qemu_fw_cfg: Improve a size determination in  fw_cfg_register_file() SF Markus Elfring <elfring@users.sourceforge.net> - 2016-09-18 15:00 +0200
  [PATCH 4/6] firmware-qemu_fw_cfg: Improve a size determination in  fw_cfg_build_symlink() SF Markus Elfring <elfring@users.sourceforge.net> - 2016-09-18 15:00 +0200
  [PATCH 5/6] firmware-qemu_fw_cfg: Rename jump labels in  fw_cfg_sysfs_probe() SF Markus Elfring <elfring@users.sourceforge.net> - 2016-09-18 15:00 +0200
  Re: [PATCH 0/6] firmware-qemu_fw_cfg: Fine-tuning for four function  implementations "Gabriel L. Somlo" <somlo@cmu.edu> - 2016-09-20 13:40 +0200

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