ubifs: do not decide upon uninitialized variable

Before 'if (err)' we have to initialize the variable otherwise we use a
random value from the stack.

Signed-off-by: Heinrich Schuchardt <[email protected]>

Author: xypron

fs/ubifs/io.c

@@ -114,7 +114,7 @@ int ubifs_leb_read(const struct ubifs_info *c, int lnum, void *buf, int offs,
 int ubifs_leb_write(struct ubifs_info *c, int lnum, const void *buf, int offs,
 		    int len)
 {
-	int err;
+	int err = 0;
 
 	ubifs_assert(!c->ro_media && !c->ro_mount);
 	if (c->ro_error)
@@ -136,7 +136,7 @@ int ubifs_leb_write(struct ubifs_info *c, int lnum, const void *buf, int offs,
 
 int ubifs_leb_change(struct ubifs_info *c, int lnum, const void *buf, int len)
 {
-	int err;
+	int err = 0;
 
 	ubifs_assert(!c->ro_media && !c->ro_mount);
 	if (c->ro_error)
@@ -158,7 +158,7 @@ int ubifs_leb_change(struct ubifs_info *c, int lnum, const void *buf, int len)
 
 int ubifs_leb_unmap(struct ubifs_info *c, int lnum)
 {
-	int err;
+	int err = 0;
 
 	ubifs_assert(!c->ro_media && !c->ro_mount);
 	if (c->ro_error)
@@ -179,7 +179,7 @@ int ubifs_leb_unmap(struct ubifs_info *c, int lnum)
 
 int ubifs_leb_map(struct ubifs_info *c, int lnum)
 {
-	int err;
+	int err = 0;
 
 	ubifs_assert(!c->ro_media && !c->ro_mount);
 	if (c->ro_error)