diff options
| author | David Vrabel <david.vrabel@csr.com> | 2009-10-07 16:32:33 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2009-10-08 07:36:40 -0700 |
| commit | a1125b1e41228bc2e5b4f023004a4280282d1dab (patch) | |
| tree | dae42956998db0946abec9163468d37466af92e5 /drivers/mmc/core | |
| parent | a54fed9f70a2765f4476e1ce3d691a2f31df258f (diff) | |
mmc: sdio: don't require CISTPL_VERS_1 to contain 4 strings
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.
[akpm@linux-foundation.org: coding-style fixes]
Signed-off-by: David Vrabel <david.vrabel@csr.com>
Tested-by: Jonathan Cameron <jic23@cam.ac.uk>
Tested-by: Bing Zhao <bzhao@marvell.com>
Cc: Roel Kluin <roel.kluin@gmail.com>
Cc: <linux-mmc@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'drivers/mmc/core')
| -rw-r--r-- | drivers/mmc/core/sdio_cis.c | 7 |
1 files changed, 3 insertions, 4 deletions
diff --git a/drivers/mmc/core/sdio_cis.c b/drivers/mmc/core/sdio_cis.c index e1035c89580..f85dcd53650 100644 --- a/drivers/mmc/core/sdio_cis.c +++ b/drivers/mmc/core/sdio_cis.c @@ -29,6 +29,8 @@ static int cistpl_vers_1(struct mmc_card *card, struct sdio_func *func, 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 *card, struct sdio_func *func, 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; |