exofs: Fix bio leak in error handling path (sync read)

When failing a read request in the sync path, called from
write_begin, I forgot to free the allocated bio, fix it.

Signed-off-by: Boaz Harrosh <bharrosh@panasas.com>

diff --git a/fs/exofs/inode.c b/fs/exofs/inode.c
index 77d0a295eb1cd3e95443da014fc9801cf64f5aff..bb5d6ed0f7a85905f97f2ff846fe563ed3cb2f37 100644 (file)
--- a/fs/exofs/inode.c
+++ b/fs/exofs/inode.c
@@ -295,6 +295,9 @@ static int read_exec(struct page_collect *pcol, bool is_sync)
 err:
        if (!is_sync)
                _unlock_pcol_pages(pcol, ret, READ);
+       else /* Pages unlocked by caller in sync mode only free bio */
+               pcol_free(pcol);
+
        kfree(pcol_copy);
        if (or)
                osd_end_request(or);