Comment # 5 on bug 944188 from Takashi Iwai

Well, the question is how to trigger this.  Could you try to boot cleanly,
insert the card, and do whatever while watching whether you get this kernel
warning?  You can see it more easily in dmesg output.

I guess the patch below should fix it, but it's just a blind fix attempt.

diff --git a/drivers/mtd/nand/r852.h b/drivers/mtd/nand/r852.h
index e6a21d9d22c6..c60ee7a6e945 100644
--- a/drivers/mtd/nand/r852.h
+++ b/drivers/mtd/nand/r852.h
@@ -53,7 +53,7 @@
 #define R852_CARD_IRQ_INSERT    0x08    /* detect card insert */
 #define R852_CARD_IRQ_UNK1    0x10    /* unknown */
 #define R852_CARD_IRQ_GENABLE    0x80    /* general enable */
-#define R852_CARD_IRQ_MASK    0x1D
+#define R852_CARD_IRQ_MASK    0x9D