ext4: avoid calling ext4fs_mount() twice, which leaks
authorStephen Warren <swarren@nvidia.com>
Sat, 5 Sep 2015 04:03:43 +0000 (22:03 -0600)
committerTom Rini <trini@konsulko.com>
Fri, 11 Sep 2015 21:15:22 +0000 (17:15 -0400)
commit676505f5ce6c621d8c28958d600dcf92bcf76574
tree1b5e0e4c4a6c4271b1ff0fb80125cf746226db88
parent44bfb43f9afab9b2944bb98bc0d514303f029ff9
ext4: avoid calling ext4fs_mount() twice, which leaks

ext4_write_file() is only called from the "fs" layer, which calls both
ext4fs_mount() and ext4fs_close() before/after calling ext4_write_file().
Fix ext4_write_file() not to call ext4fs_mount() again, since the mount
operation malloc()s some RAM which is leaked when a second mount call
over-writes the pointer to that data, if no intervening close call is
made.

Signed-off-by: Stephen Warren <swarren@nvidia.com>
Acked-by: Lukasz Majewski <l.majewski@samsung.com>
Tested-by: Lukasz Majewski <l.majewski@samsung.com>
fs/ext4/ext4_write.c