UBI: fix warnings

Old gcc complains:

CC      drivers/mtd/ubi/wl.o
drivers/mtd/ubi/wl.c: In function 'wear_leveling_worker':
drivers/mtd/ubi/wl.c:746: warning: 'pe' may be used uninitialized in this function
CC      drivers/mtd/ubi/scan.o
drivers/mtd/ubi/scan.c: In function 'ubi_scan':
drivers/mtd/ubi/scan.c:772: warning: 'ec' may be used uninitialized in this function
drivers/mtd/ubi/scan.c:772: note: 'ec' was declared here

Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com>

diff --git a/drivers/mtd/ubi/scan.c b/drivers/mtd/ubi/scan.c
index e476638..6f2680f 100644 (file)
--- a/drivers/mtd/ubi/scan.c
+++ b/drivers/mtd/ubi/scan.c
@@ -773,7 +773,7 @@ struct ubi_scan_leb *ubi_scan_get_free_peb(struct ubi_device *ubi,
  */
 static int process_eb(struct ubi_device *ubi, struct ubi_scan_info *si, int pnum)
 {
-       long long ec;
+       long long uninitialized_var(ec);
        int err, bitflips = 0, vol_id, ec_corr = 0;
 
        dbg_bld("scan PEB %d", pnum);

diff --git a/drivers/mtd/ubi/wl.c b/drivers/mtd/ubi/wl.c
index 8bfb743..a471a49 100644 (file)
--- a/drivers/mtd/ubi/wl.c
+++ b/drivers/mtd/ubi/wl.c
@@ -743,7 +743,7 @@ static int wear_leveling_worker(struct ubi_device *ubi, struct ubi_work *wrk,
                                int cancel)
 {
        int err, put = 0, scrubbing = 0, protect = 0;
-       struct ubi_wl_prot_entry *pe;
+       struct ubi_wl_prot_entry *uninitialized_var(pe);
        struct ubi_wl_entry *e1, *e2;
        struct ubi_vid_hdr *vid_hdr;