ar71xx: make ar934x_nfc driver compatible with 3.7

[openwrt/svn-archive/archive.git] / target / linux / ar71xx / patches-3.3 / a05-ar934x_nfc-add-buffer-verification.patch

diff --git a/target/linux/ar71xx/patches-3.3/a05-ar934x_nfc-add-buffer-verification.patch b/target/linux/ar71xx/patches-3.3/a05-ar934x_nfc-add-buffer-verification.patch
new file mode 100644 (file)
index 0000000..c4c4628
--- /dev/null
+++ b/target/linux/ar71xx/patches-3.3/a05-ar934x_nfc-add-buffer-verification.patch
@@ -0,0 +1,29 @@
+--- a/drivers/mtd/nand/ar934x_nfc.c
++++ b/drivers/mtd/nand/ar934x_nfc.c
+@@ -762,6 +762,18 @@ ar934x_nfc_read_buf(struct mtd_info *mtd
+       nfc->buf_index = buf_index;
+ }
+ 
++static int
++ar934x_nfc_verify_buf(struct mtd_info *mtd, const u_char *buf, int len)
++{
++      int i;
++
++      for (i = 0; i < len; i++)
++              if (buf[i] != ar934x_nfc_read_byte(mtd))
++                      return -EFAULT;
++
++      return 0;
++}
++
+ static void
+ ar934x_nfc_hw_init(struct ar934x_nfc *nfc)
+ {
+@@ -1048,6 +1060,7 @@ ar934x_nfc_probe(struct platform_device
+       nand->read_byte = ar934x_nfc_read_byte;
+       nand->write_buf = ar934x_nfc_write_buf;
+       nand->read_buf = ar934x_nfc_read_buf;
++      nand->verify_buf = ar934x_nfc_verify_buf;
+       nand->select_chip = ar934x_nfc_select_chip;
+ 
+       ret = ar934x_nfc_alloc_buf(nfc, AR934X_NFC_ID_BUF_SIZE);