From a6550e57f9d074511cf420bdb802ab5e56edc3bb Mon Sep 17 00:00:00 2001 From: Jesper Juhl Date: Sun, 14 May 2006 01:42:25 +0200 Subject: [PATCH] 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 Signed-off-by: David Woodhouse --- drivers/mtd/devices/block2mtd.c | 9 ++++++--- 1 file changed, 6 insertions(+), 3 deletions(-) diff --git a/drivers/mtd/devices/block2mtd.c b/drivers/mtd/devices/block2mtd.c index f54e4bf..4560692 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); -- 2.7.4