From: David Vrabel <[email protected]>

The PC Card 8.0 specification (vol.  4, section 3.2.10) says the
TPLLV1_INFO field of the CISTPL_VERS_1 tuple must contain 4 strings.  Some
cards don't have all 4 so just parse as many as we can.

[[email protected]: coding-style fixes]
Signed-off-by: David Vrabel <[email protected]>
Tested-by: Jonathan Cameron <[email protected]>
Tested-by: Bing Zhao <[email protected]>
Cc: Roel Kluin <[email protected]>
Cc: <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>
---


diff -puN 
drivers/mmc/core/sdio_cis.c~mmc-sdio-dont-require-cistpl_vers_1-to-contain-4-strings
 drivers/mmc/core/sdio_cis.c
--- 
a/drivers/mmc/core/sdio_cis.c~mmc-sdio-dont-require-cistpl_vers_1-to-contain-4-strings
+++ a/drivers/mmc/core/sdio_cis.c
@@ -29,6 +29,8 @@ static int cistpl_vers_1(struct mmc_card
        unsigned i, nr_strings;
        char **buffer, *string;
 
+       /* Find all null-terminated (including zero length) strings in
+          the TPLLV1_INFO field. Trailing garbage is ignored. */
        buf += 2;
        size -= 2;
 
@@ -39,11 +41,8 @@ static int cistpl_vers_1(struct mmc_card
                if (buf[i] == 0)
                        nr_strings++;
        }
-
-       if (nr_strings < 4) {
-               printk(KERN_WARNING "SDIO: ignoring broken CISTPL_VERS_1\n");
+       if (nr_strings == 0)
                return 0;
-       }
 
        size = i;
 
_
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