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| author | Hans Petter Selasky <hselasky@FreeBSD.org> | 2012-08-21 19:55:24 +0000 |
|---|---|---|
| committer | Hans Petter Selasky <hselasky@FreeBSD.org> | 2012-08-21 19:55:24 +0000 |
| commit | 94d6bc8895ba648396b4f082b989a338c0ce8a49 (patch) | |
| tree | 2eb6c4cbaeec6905be5523df10f395ec3fa935f5 /sys/arm/at91 | |
| parent | f9796f4373527c2ff11cd6b18a35974359ce740c (diff) | |
| download | src-94d6bc8895ba648396b4f082b989a338c0ce8a49.tar.gz src-94d6bc8895ba648396b4f082b989a338c0ce8a49.zip | |
Make some at91_pcm_xxx() functions NULL safe.
Notes
Notes:
svn path=/head/; revision=239530
Diffstat (limited to 'sys/arm/at91')
| -rw-r--r-- | sys/arm/at91/at91_pmc.c | 7 |
1 files changed, 6 insertions, 1 deletions
diff --git a/sys/arm/at91/at91_pmc.c b/sys/arm/at91/at91_pmc.c index 43a7b9c3f6fc..0eeaa053f6b2 100644 --- a/sys/arm/at91/at91_pmc.c +++ b/sys/arm/at91/at91_pmc.c @@ -369,12 +369,15 @@ at91_pmc_clock_ref(const char *name) void at91_pmc_clock_deref(struct at91_pmc_clock *clk) { - + if (clk == NULL) + return; } void at91_pmc_clock_enable(struct at91_pmc_clock *clk) { + if (clk == NULL) + return; /* XXX LOCKING? XXX */ if (clk->parent) @@ -386,6 +389,8 @@ at91_pmc_clock_enable(struct at91_pmc_clock *clk) void at91_pmc_clock_disable(struct at91_pmc_clock *clk) { + if (clk == NULL) + return; /* XXX LOCKING? XXX */ if (--clk->refcnt == 0 && clk->set_mode) |