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| author | Pan Bian <bianpan2016@163.com> | 2016-12-03 17:29:28 +0800 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2017-01-10 21:46:41 +0100 |
| commit | ddc5c9a37be4517270453ce909d3dfcc8de58230 (patch) | |
| tree | bdf83a866802e27140fda6be54b63ad4ca50a8e3 /drivers/misc/sram.c | |
| parent | d77044d142e960f7b5f814a91ecb8bcf86aa552c (diff) | |
| download | linux-ddc5c9a37be4517270453ce909d3dfcc8de58230.tar.gz linux-ddc5c9a37be4517270453ce909d3dfcc8de58230.tar.bz2 linux-ddc5c9a37be4517270453ce909d3dfcc8de58230.zip | |
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.c | 4 |
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, |