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authorPan Bian <bianpan2016@163.com>2016-12-03 12:29:28 +0300
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2017-01-10 23:46:41 +0300
commitddc5c9a37be4517270453ce909d3dfcc8de58230 (patch)
treebdf83a866802e27140fda6be54b63ad4ca50a8e3 /drivers/misc/sram.c
parentd77044d142e960f7b5f814a91ecb8bcf86aa552c (diff)
downloadlinux-ddc5c9a37be4517270453ce909d3dfcc8de58230.tar.xz
misc: set error code when devm_kstrdup fails
In function sram_reserve_regions(), the value of return variable ret should be negative on failures. However, the value of ret may be 0 even if the call to devm_kstrdup() returns a NULL pointer. This patch explicitly assigns "-ENOMEM" to ret on the path that devm_kstrdup() fails. Bugzilla: https://bugzilla.kernel.org/show_bug.cgi?id=188651 Signed-off-by: Pan Bian <bianpan2016@163.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/misc/sram.c')
-rw-r--r--drivers/misc/sram.c4
1 files changed, 3 insertions, 1 deletions
diff --git a/drivers/misc/sram.c b/drivers/misc/sram.c
index b33ab8ce47ab..07ec2a8a9343 100644
--- a/drivers/misc/sram.c
+++ b/drivers/misc/sram.c
@@ -249,8 +249,10 @@ static int sram_reserve_regions(struct sram_dev *sram, struct resource *res)
block->label = devm_kstrdup(sram->dev,
label, GFP_KERNEL);
- if (!block->label)
+ if (!block->label) {
+ ret = -ENOMEM;
goto err_chunks;
+ }
dev_dbg(sram->dev, "found %sblock '%s' 0x%x-0x%x\n",
block->export ? "exported " : "", block->label,