5.15-stable review patch. If anyone has any objections, please let me know.
------------------
From: Tom Rix trix@redhat.com
commit 23970a1c9475b305770fd37bebfec7a10f263787 upstream.
The clang build reports this error fs/udf/inode.c:805:6: error: variable 'newblock' is used uninitialized whenever 'if' condition is true [-Werror,-Wsometimes-uninitialized] if (*err < 0) ^~~~~~~~ newblock is never set before error handling jump. Initialize newblock to 0 and remove redundant settings.
Fixes: d8b39db5fab8 ("udf: Handle error when adding extent to a file") Reported-by: Nathan Chancellor nathan@kernel.org Signed-off-by: Tom Rix trix@redhat.com Signed-off-by: Jan Kara jack@suse.cz Message-Id: 20221230175341.1629734-1-trix@redhat.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- fs/udf/inode.c | 4 +--- 1 file changed, 1 insertion(+), 3 deletions(-)
--- a/fs/udf/inode.c +++ b/fs/udf/inode.c @@ -695,7 +695,7 @@ static sector_t inode_getblk(struct inod struct kernel_lb_addr eloc, tmpeloc; int c = 1; loff_t lbcount = 0, b_off = 0; - udf_pblk_t newblocknum, newblock; + udf_pblk_t newblocknum, newblock = 0; sector_t offset = 0; int8_t etype; struct udf_inode_info *iinfo = UDF_I(inode); @@ -798,7 +798,6 @@ static sector_t inode_getblk(struct inod ret = udf_do_extend_file(inode, &prev_epos, laarr, hole_len); if (ret < 0) { *err = ret; - newblock = 0; goto out_free; } c = 0; @@ -861,7 +860,6 @@ static sector_t inode_getblk(struct inod goal, err); if (!newblocknum) { *err = -ENOSPC; - newblock = 0; goto out_free; } if (isBeyondEOF)