diff options
author | Michael Hennerich <michael.hennerich@analog.com> | 2007-07-24 18:03:45 +0800 |
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committer | Bryan Wu <bryan.wu@analog.com> | 2007-07-24 18:03:45 +0800 |
commit | 314c98d589b9da40af42cfe7213eff04c74caea3 (patch) | |
tree | 3c91afc0d6b0f0150aa7f545c0060f96d751a9d4 /arch/blackfin/mach-bf548 | |
parent | 06039e90b90af4029184d577b3c66e59f6039a9e (diff) |
Blackfin arch: add missing gpio error handling to make sure we roll back requests in case one fails
Signed-off-by: Michael Hennerich <michael.hennerich@analog.com>
Signed-off-by: Bryan Wu <bryan.wu@analog.com>
Diffstat (limited to 'arch/blackfin/mach-bf548')
-rw-r--r-- | arch/blackfin/mach-bf548/gpio.c | 11 |
1 files changed, 9 insertions, 2 deletions
diff --git a/arch/blackfin/mach-bf548/gpio.c b/arch/blackfin/mach-bf548/gpio.c index c073ab36066d..f3b9deacd332 100644 --- a/arch/blackfin/mach-bf548/gpio.c +++ b/arch/blackfin/mach-bf548/gpio.c @@ -212,11 +212,18 @@ int peripheral_request_list(unsigned short per[], const char *label) int ret; for (cnt = 0; per[cnt] != 0; cnt++) { + ret = peripheral_request(per[cnt], label); - if (ret < 0) - return ret; + + if (ret < 0) { + for ( ; cnt > 0; cnt--) { + peripheral_free(per[cnt - 1]); + } + return ret; + } } + return 0; } EXPORT_SYMBOL(peripheral_request_list); |