scsi: target: tcmu: Fix warning: 'page' may be used uninitialized

Corrects drivers/target/target_core_user.c:688:6: warning: 'page' may be
used uninitialized.

Link: https://lore.kernel.org/r/20200924001920.43594-1-john.p.donnelly@oracle.com
Fixes: 3c58f737231e ("scsi: target: tcmu: Optimize use of flush_dcache_page")
Cc: Mike Christie <michael.christie@oracle.com>
Acked-by: Mike Christie <michael.christie@oracle.com>
Signed-off-by: John Donnelly <john.p.donnelly@oracle.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>

diff --git a/drivers/target/target_core_user.c b/drivers/target/target_core_user.c
index fa001d7ab6e61fdc84369d99ac1b9503eb1a5656..4c960b66de8e49e45551e158ee8a58d96cd59ac1 100644 (file)
--- a/drivers/target/target_core_user.c
+++ b/drivers/target/target_core_user.c
@@ -699,7 +699,7 @@ static void scatter_data_area(struct tcmu_dev *udev, struct tcmu_cmd *tcmu_cmd,
        void *from, *to = NULL;
        size_t copy_bytes, offset;
        struct scatterlist *sg;
-       struct page *page;
+       struct page *page = NULL;
 
        for_each_sg(se_cmd->t_data_sg, sg, se_cmd->t_data_nents, i) {
                int sg_remaining = sg->length;