[PATCH] kexec: fix sparse warnings

Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com>
Cc: Eric Biederman <ebiederm@xmission.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

1 files changed, 5 insertions, 5 deletions

diff --git a/kernel/kexec.c b/kernel/kexec.c
index 7843548cf2d9..cdd4dcd8fb63 100644
--- a/kernel/kexec.c
+++ b/kernel/kexec.c
@@ -241,7 +241,7 @@ static int kimage_normal_alloc(struct kimage **rimage, unsigned long entry,
 
 static int kimage_crash_alloc(struct kimage **rimage, unsigned long entry,
                                 unsigned long nr_segments,
-                                struct kexec_segment *segments)
+                                struct kexec_segment __user *segments)
 {
         int result;
         struct kimage *image;
@@ -650,7 +650,7 @@ static kimage_entry_t *kimage_dst_used(struct kimage *image,
                 }
         }
 
-        return 0;
+        return NULL;
 }
 
 static struct page *kimage_alloc_page(struct kimage *image,
@@ -696,7 +696,7 @@ static struct page *kimage_alloc_page(struct kimage *image,
                 /* Allocate a page, if we run out of memory give up */
                 page = kimage_alloc_pages(gfp_mask, 0);
                 if (!page)
-                        return 0;
+                        return NULL;
                 /* If the page cannot be used file it away */
                 if (page_to_pfn(page) >
                                 (KEXEC_SOURCE_MEMORY_LIMIT >> PAGE_SHIFT)) {
@@ -754,7 +754,7 @@ static int kimage_load_normal_segment(struct kimage *image,
         unsigned long maddr;
         unsigned long ubytes, mbytes;
         int result;
-        unsigned char *buf;
+        unsigned char __user *buf;
 
         result = 0;
         buf = segment->buf;
@@ -818,7 +818,7 @@ static int kimage_load_crash_segment(struct kimage *image,
         unsigned long maddr;
         unsigned long ubytes, mbytes;
         int result;
-        unsigned char *buf;
+        unsigned char __user *buf;
 
         result = 0;
         buf = segment->buf;