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-rw-r--r--misc-utils/lsblk.c4
1 files changed, 3 insertions, 1 deletions
diff --git a/misc-utils/lsblk.c b/misc-utils/lsblk.c
index 1d7920376b..5c73bee0af 100644
--- a/misc-utils/lsblk.c
+++ b/misc-utils/lsblk.c
@@ -974,7 +974,9 @@ static int set_cxt(struct blkdev_cxt *cxt,
if (sysfs_read_u64(&cxt->sysfs, "size", &cxt->size) == 0) /* in sectors */
cxt->size <<= 9; /* in bytes */
- sysfs_read_int(&cxt->sysfs, "queue/discard_granularity", &cxt->discard);
+ if (sysfs_read_int(&cxt->sysfs,
+ "queue/discard_granularity", &cxt->discard) != 0)
+ cxt->discard = 0;
/* Ignore devices of zero size */
if (!lsblk->all_devices && cxt->size == 0)