btrfs: fix not enough reserved space

[mv-sheeva.git] / kernel / kexec.c

diff --git a/kernel/kexec.c b/kernel/kexec.c
index 131b1703936f6dbe71cf84c2ff572efef6c47e70..c0613f7d673064b7bbe1afcf7477dd569310989c 100644 (file)
--- a/kernel/kexec.c
+++ b/kernel/kexec.c
@@ -151,8 +151,10 @@ static int do_kimage_alloc(struct kimage **rimage, unsigned long entry,
        image->nr_segments = nr_segments;
        segment_bytes = nr_segments * sizeof(*segments);
        result = copy_from_user(image->segment, segments, segment_bytes);
-       if (result)
+       if (result) {
+               result = -EFAULT;
                goto out;
+       }
 
        /*
         * Verify we have good destination addresses.  The caller is
@@ -827,7 +829,7 @@ static int kimage_load_normal_segment(struct kimage *image,
                result = copy_from_user(ptr, buf, uchunk);
                kunmap(page);
                if (result) {
-                       result = (result < 0) ? result : -EIO;
+                       result = -EFAULT;
                        goto out;
                }
                ubytes -= uchunk;
@@ -882,7 +884,7 @@ static int kimage_load_crash_segment(struct kimage *image,
                kexec_flush_icache_page(page);
                kunmap(page);
                if (result) {
-                       result = (result < 0) ? result : -EIO;
+                       result = -EFAULT;
                        goto out;
                }
                ubytes -= uchunk;