aboutsummaryrefslogtreecommitdiff
diff options
context:
space:
mode:
authorMassimo Cirillo <maxcir@gmail.com>2009-08-27 10:44:09 +0200
committerDavid Woodhouse <David.Woodhouse@intel.com>2009-09-03 15:01:34 +0100
commitbc8cec0dff072f1a45ce7f6b2c5234bb3411ac51 (patch)
treec0794baebf16ecbbedbe79daaba80281fdad1e03
parent16f05c2b68520f94e365f9d347a7076f4ff00ad5 (diff)
downloadlinux-linaro-bc8cec0dff072f1a45ce7f6b2c5234bb3411ac51.tar.gz
JFFS2: add missing verify buffer allocation/deallocation
The function jffs2_nor_wbuf_flash_setup() doesn't allocate the verify buffer if CONFIG_JFFS2_FS_WBUF_VERIFY is defined, so causing a kernel panic when that macro is enabled and the verify function is called. Similarly the jffs2_nor_wbuf_flash_cleanup() must free the buffer if CONFIG_JFFS2_FS_WBUF_VERIFY is enabled. The following patch fixes the problem. The following patch applies to 2.6.30 kernel. Signed-off-by: Massimo Cirillo <maxcir@gmail.com> Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com> Signed-off-by: David Woodhouse <David.Woodhouse@intel.com> Cc: stable@kernel.org
-rw-r--r--fs/jffs2/wbuf.c10
1 files changed, 10 insertions, 0 deletions
diff --git a/fs/jffs2/wbuf.c b/fs/jffs2/wbuf.c
index d9a721e6db7..5ef7bac265e 100644
--- a/fs/jffs2/wbuf.c
+++ b/fs/jffs2/wbuf.c
@@ -1268,10 +1268,20 @@ int jffs2_nor_wbuf_flash_setup(struct jffs2_sb_info *c) {
if (!c->wbuf)
return -ENOMEM;
+#ifdef CONFIG_JFFS2_FS_WBUF_VERIFY
+ c->wbuf_verify = kmalloc(c->wbuf_pagesize, GFP_KERNEL);
+ if (!c->wbuf_verify) {
+ kfree(c->wbuf);
+ return -ENOMEM;
+ }
+#endif
return 0;
}
void jffs2_nor_wbuf_flash_cleanup(struct jffs2_sb_info *c) {
+#ifdef CONFIG_JFFS2_FS_WBUF_VERIFY
+ kfree(c->wbuf_verify);
+#endif
kfree(c->wbuf);
}