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| author |   Eric Rannaud <eric.rannaud@gmail.com> | 2007-03-30 22:23:12 -0700 |
|---|---|---|
| committer |   Greg Kroah-Hartman <gregkh@suse.de> | 2007-04-27 10:57:29 -0700 |
| commit | bf62456eb91f3d2ef0736081583d09b0b3c8b7ea (patch) | |
| tree | 851c2559ae11835e19763b7c7c54393f0ae0d5f6 /drivers/mmc | |
| parent | Driver core: switch firmware_class to uevent_suppress. (diff) | |
| download | linux-dev-bf62456eb91f3d2ef0736081583d09b0b3c8b7ea.tar.xz linux-dev-bf62456eb91f3d2ef0736081583d09b0b3c8b7ea.zip | |
uevent: use add_uevent_var() instead of open coding it
Make use of add_uevent_var() instead of (often incorrectly) open coding it.
Signed-off-by: Michael Ellerman <michael@ellerman.id.au>
Signed-off-by: Eric Rannaud <eric.rannaud@gmail.com>
Cc: Kay Sievers <kay.sievers@vrfy.org>
Cc: Cornelia Huck <cornelia.huck@de.ibm.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Diffstat (limited to 'drivers/mmc')
| -rw-r--r-- | drivers/mmc/mmc_sysfs.c | 27 |
1 files changed, 11 insertions, 16 deletions
diff --git a/drivers/mmc/mmc_sysfs.c b/drivers/mmc/mmc_sysfs.c index d32698b02d7f..e0e82d849d5f 100644 --- a/drivers/mmc/mmc_sysfs.c +++ b/drivers/mmc/mmc_sysfs.c @@ -86,31 +86,26 @@ mmc_bus_uevent(struct device *dev, char **envp, int num_envp, char *buf, { struct mmc_card *card = dev_to_mmc_card(dev); char ccc[13]; - int i = 0; - -#define add_env(fmt,val) \ - ({ \ - int len, ret = -ENOMEM; \ - if (i < num_envp) { \ - envp[i++] = buf; \ - len = snprintf(buf, buf_size, fmt, val) + 1; \ - buf_size -= len; \ - buf += len; \ - if (buf_size >= 0) \ - ret = 0; \ - } \ - ret; \ - }) + int retval = 0, i = 0, length = 0; + +#define add_env(fmt,val) do { \ + retval = add_uevent_var(envp, num_envp, &i, \ + buf, buf_size, &length, \ + fmt, val); \ + if (retval) \ + return retval; \ +} while (0); for (i = 0; i < 12; i++) ccc[i] = card->csd.cmdclass & (1 << i) ? '1' : '0'; ccc[12] = '\0'; - i = 0; add_env("MMC_CCC=%s", ccc); add_env("MMC_MANFID=%06x", card->cid.manfid); add_env("MMC_NAME=%s", mmc_card_name(card)); add_env("MMC_OEMID=%04x", card->cid.oemid); +#undef add_env + envp[i] = NULL; return 0; } |