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| author | Jesper Juhl <jesper.juhl@gmail.com> | 2006-05-14 01:07:18 +0200 |
|---|---|---|
| committer | David Woodhouse <dwmw2@infradead.org> | 2006-05-14 00:13:30 +0100 |
| commit | 4f678a58d335291ce9213c049bbe16e6d24487ed (patch) | |
| tree | 136a3406bf5b0e80b3d45cd4d3c6ca40bb9961fd /drivers/mtd/devices/phram.c | |
| parent | e0c7d7675331140e5186d2d1a0efce1d3877d379 (diff) | |
| download | op-kernel-dev-4f678a58d335291ce9213c049bbe16e6d24487ed.zip op-kernel-dev-4f678a58d335291ce9213c049bbe16e6d24487ed.tar.gz | |
mtd: fix memory leaks in phram_setup
There are two code paths in drivers/mtd/devices/phram.c::phram_setup() that
will leak memory.
Memory is allocated to the variable 'name' with kmalloc() by the
parse_name() function, but if we leave by way of the parse_err() macro,
then that memory is never kfree()'d, nor is it ever used with
register_device() so it won't be freed later either - leak.
Found by the Coverity checker as #593 - simple fix below.
Signed-off-by: Jesper Juhl <jesper.juhl@gmail.com>
Signed-off-by: David Woodhouse <dwmw2@infradead.org>
Diffstat (limited to 'drivers/mtd/devices/phram.c')
| -rw-r--r-- | drivers/mtd/devices/phram.c | 8 |
1 files changed, 6 insertions, 2 deletions
diff --git a/drivers/mtd/devices/phram.c b/drivers/mtd/devices/phram.c index 41af969..68d39cc 100644 --- a/drivers/mtd/devices/phram.c +++ b/drivers/mtd/devices/phram.c @@ -266,12 +266,16 @@ static int phram_setup(const char *val, struct kernel_param *kp) return 0; ret = parse_num32(&start, token[1]); - if (ret) + if (ret) { + kfree(name); parse_err("illegal start address\n"); + } ret = parse_num32(&len, token[2]); - if (ret) + if (ret) { + kfree(name); parse_err("illegal device length\n"); + } register_device(name, start, len); |
