This patch fixes  Bug 49921 - Missing NULL check of return value of 
logfs_get_write_page() in function btree_write_block()

Signed-off-by: Abhijit Pawar <[email protected]>
---
 fs/logfs/readwrite.c |    1 +
 1 files changed, 1 insertions(+), 0 deletions(-)

diff --git a/fs/logfs/readwrite.c b/fs/logfs/readwrite.c
index e1a3b6b..53596ce 100644
--- a/fs/logfs/readwrite.c
+++ b/fs/logfs/readwrite.c
@@ -2202,6 +2202,7 @@ void btree_write_block(struct logfs_block *block)
 
        inode = logfs_safe_iget(block->sb, block->ino, &cookie);
        page = logfs_get_write_page(inode, block->bix, block->level);
+       BUG_ON(!page);
 
        err = logfs_readpage_nolock(page);
        BUG_ON(err);
-- 
1.7.7.6

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