btrfs: return errno instead of -1 from compression

[android-x86/kernel.git] / fs / btrfs / lzo.c

diff --git a/fs/btrfs/lzo.c b/fs/btrfs/lzo.c
index b47f669..dfad851 100644 (file)
--- a/fs/btrfs/lzo.c
+++ b/fs/btrfs/lzo.c
@@ -143,7 +143,7 @@ static int lzo_compress_pages(struct list_head *ws,
                if (ret != LZO_E_OK) {
                        printk(KERN_DEBUG "BTRFS: deflate in loop returned %d\n",
                               ret);
-                       ret = -1;
+                       ret = -EIO;
                        goto out;
                }
 
@@ -189,7 +189,7 @@ static int lzo_compress_pages(struct list_head *ws,
                                kunmap(out_page);
                                if (nr_pages == nr_dest_pages) {
                                        out_page = NULL;
-                                       ret = -1;
+                                       ret = -E2BIG;
                                        goto out;
                                }
 
@@ -208,7 +208,7 @@ static int lzo_compress_pages(struct list_head *ws,
 
                /* we're making it bigger, give up */
                if (tot_in > 8192 && tot_in < tot_out) {
-                       ret = -1;
+                       ret = -E2BIG;
                        goto out;
                }
 
@@ -335,7 +335,7 @@ cont:
                                        break;
 
                                if (page_in_index + 1 >= total_pages_in) {
-                                       ret = -1;
+                                       ret = -EIO;
                                        goto done;
                                }
 
@@ -358,7 +358,7 @@ cont:
                        kunmap(pages_in[page_in_index - 1]);
                if (ret != LZO_E_OK) {
                        printk(KERN_WARNING "BTRFS: decompress failed\n");
-                       ret = -1;
+                       ret = -EIO;
                        break;
                }
 
@@ -402,12 +402,12 @@ static int lzo_decompress(struct list_head *ws, unsigned char *data_in,
        ret = lzo1x_decompress_safe(data_in, in_len, workspace->buf, &out_len);
        if (ret != LZO_E_OK) {
                printk(KERN_WARNING "BTRFS: decompress failed!\n");
-               ret = -1;
+               ret = -EIO;
                goto out;
        }
 
        if (out_len < start_byte) {
-               ret = -1;
+               ret = -EIO;
                goto out;
        }