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| author |   Jesper Juhl <jesper.juhl@gmail.com> | 2006-05-14 01:42:25 +0200 |
|---|---|---|
| committer |   David Woodhouse <dwmw2@infradead.org> | 2006-05-14 01:21:31 +0100 |
| commit | a6550e57f9d074511cf420bdb802ab5e56edc3bb (patch) | |
| tree | 56010126c6a1660b6fbd97765c73f8808214f98c /drivers/mtd/devices/block2mtd.c | |
| parent | [MTD] Fix module refcounting in NAND board drivers. (diff) | |
| download | linux-dev-a6550e57f9d074511cf420bdb802ab5e56edc3bb.tar.xz linux-dev-a6550e57f9d074511cf420bdb802ab5e56edc3bb.zip | |
mtd: fix memory leak in block2mtd_setup()
There's a mem leak in drivers/mtd/devices/block2mtd.c::block2mtd_setup()
We can leak 'name' allocated with kmalloc in 'parse_name' if leave via
the 'parse_err' macro since it contains a return but doesn't do any
freeing.
Spotted by coverity checker as bug 615.
Signed-off-by: Jesper Juhl <jesper.juhl@gmail.com>
Signed-off-by: David Woodhouse <dwmw2@infradead.org>
Diffstat (limited to '')
| -rw-r--r-- | drivers/mtd/devices/block2mtd.c | 9 |
1 files changed, 6 insertions, 3 deletions
diff --git a/drivers/mtd/devices/block2mtd.c b/drivers/mtd/devices/block2mtd.c index f54e4bf9b968..45606921364b 100644 --- a/drivers/mtd/devices/block2mtd.c +++ b/drivers/mtd/devices/block2mtd.c @@ -429,7 +429,8 @@ static inline void kill_final_newline(char *str) static int block2mtd_setup(const char *val, struct kernel_param *kp) { - char buf[80+12], *str=buf; /* 80 for device, 12 for erase size */ + char buf[80+12]; /* 80 for device, 12 for erase size */ + char *str = buf; char *token[2]; char *name; size_t erase_size = PAGE_SIZE; @@ -441,7 +442,7 @@ static int block2mtd_setup(const char *val, struct kernel_param *kp) strcpy(str, val); kill_final_newline(str); - for (i=0; i<2; i++) + for (i = 0; i < 2; i++) token[i] = strsep(&str, ","); if (str) @@ -460,8 +461,10 @@ static int block2mtd_setup(const char *val, struct kernel_param *kp) if (token[1]) { ret = parse_num(&erase_size, token[1]); - if (ret) + if (ret) { + kfree(name); parse_err("illegal erase size"); + } } add_device(name, erase_size); |