lkml.org 
[lkml]   [2017]   [Mar]   [16]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
Patch in this message
/
From
Subject[PATCH 4.4 09/35] mtd: pmcmsp: use kstrndup instead of kmalloc+strncpy
Date
4.4-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Arnd Bergmann <arnd@arndb.de>

commit 906b268477bc03daaa04f739844c120fe4dbc991 upstream.

kernelci.org reports a warning for this driver, as it copies a local
variable into a 'const char *' string:

drivers/mtd/maps/pmcmsp-flash.c:149:30: warning: passing argument 1 of 'strncpy' discards 'const' qualifier from pointer target type [-Wdiscarded-qualifiers]

Using kstrndup() simplifies the code and avoids the warning.

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Acked-by: Marek Vasut <marek.vasut@gmail.com>
Signed-off-by: Brian Norris <computersforpeace@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

---
drivers/mtd/maps/pmcmsp-flash.c | 4 +---
1 file changed, 1 insertion(+), 3 deletions(-)

--- a/drivers/mtd/maps/pmcmsp-flash.c
+++ b/drivers/mtd/maps/pmcmsp-flash.c
@@ -139,15 +139,13 @@ static int __init init_msp_flash(void)
}

msp_maps[i].bankwidth = 1;
- msp_maps[i].name = kmalloc(7, GFP_KERNEL);
+ msp_maps[i].name = kstrndup(flash_name, 7, GFP_KERNEL);
if (!msp_maps[i].name) {
iounmap(msp_maps[i].virt);
kfree(msp_parts[i]);
goto cleanup_loop;
}

- msp_maps[i].name = strncpy(msp_maps[i].name, flash_name, 7);
-
for (j = 0; j < pcnt; j++) {
part_name[5] = '0' + i;
part_name[7] = '0' + j;

\
 
 \ /
  Last update: 2017-03-16 16:04    [W:1.744 / U:0.744 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site