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UBI: fix leak in ubi_scan_erase_peb

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Coverity (1769) found the following problem: if the erase counter
overflow check triggers, ec_hdr is leaked.

Moving the allocation after the overflow check should take care of it.

Signed-off-by: Florin Malita <fmalita@gmail.com>
Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com>
This commit is contained in:
Florin Malita 2007-07-19 15:22:41 -04:00 committed by Artem Bityutskiy
parent bbf25010f1
commit dcec4c3bdc
1 changed files with 4 additions and 4 deletions
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8
drivers/mtd/ubi/scan.c
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@ -673,10 +673,6 @@ int ubi_scan_erase_peb(const struct ubi_device *ubi,
int err; int err;
struct ubi_ec_hdr *ec_hdr; struct ubi_ec_hdr *ec_hdr;
ec_hdr = kzalloc(ubi->ec_hdr_alsize, GFP_KERNEL);
if (!ec_hdr)
return -ENOMEM;
if ((long long)ec >= UBI_MAX_ERASECOUNTER) { if ((long long)ec >= UBI_MAX_ERASECOUNTER) {
/* /*
* Erase counter overflow. Upgrade UBI and use 64-bit * Erase counter overflow. Upgrade UBI and use 64-bit
@ -686,6 +682,10 @@ int ubi_scan_erase_peb(const struct ubi_device *ubi,
return -EINVAL; return -EINVAL;
} }
ec_hdr = kzalloc(ubi->ec_hdr_alsize, GFP_KERNEL);
if (!ec_hdr)
return -ENOMEM;
ec_hdr->ec = cpu_to_be64(ec); ec_hdr->ec = cpu_to_be64(ec);
err = ubi_io_sync_erase(ubi, pnum, 0); err = ubi_io_sync_erase(ubi, pnum, 0);