From 6cef7f6079550af3bf91dbff824398eaef08c3c5 Mon Sep 17 00:00:00 2001 From: Andrei Borzenkov Date: Tue, 4 Apr 2017 19:22:32 +0300 Subject: [PATCH 1/4] btrfs: avoid "used uninitialized" error with GCC7 sblock was local and so considered new variable on every loop iteration. Closes: 50597 --- Upstream-Status: Backport Signed-off-by: Khem Raj grub-core/fs/btrfs.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/grub-core/fs/btrfs.c b/grub-core/fs/btrfs.c index 9cffa91..4849c1c 100644 --- a/grub-core/fs/btrfs.c +++ b/grub-core/fs/btrfs.c @@ -227,11 +227,11 @@ grub_btrfs_read_logical (struct grub_btrfs_data *data, static grub_err_t read_sblock (grub_disk_t disk, struct grub_btrfs_superblock *sb) { + struct grub_btrfs_superblock sblock; unsigned i; grub_err_t err = GRUB_ERR_NONE; for (i = 0; i < ARRAY_SIZE (superblock_sectors); i++) { - struct grub_btrfs_superblock sblock; /* Don't try additional superblocks beyond device size. */ if (i && (grub_le_to_cpu64 (sblock.this_device.size) >> GRUB_DISK_SECTOR_BITS) <= superblock_sectors[i]) -- 1.9.1