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| author | Ben Dooks <ben-linux@fluff.org> | 2008-12-12 00:24:34 +0000 |
|---|---|---|
| committer | Ben Dooks <ben-linux@fluff.org> | 2009-03-08 13:19:54 +0000 |
| commit | aa8aba6944203a17a7e941b42d8415153c649660 (patch) | |
| tree | 83b96dda96383f02c2c7be746e3e71e183e9271d /arch/arm/plat-s3c/pm-check.c | |
| parent | 663a83048c602d5176c23489b4e29598d753e42b (diff) | |
| download | blackbird-op-linux-aa8aba6944203a17a7e941b42d8415153c649660.tar.gz blackbird-op-linux-aa8aba6944203a17a7e941b42d8415153c649660.zip | |
[ARM] S3C: Do not kmalloc/kfree during inner suspend code.
The PM CRC checking code kmallocs an area to save a set of
CRC values during suspend. This triggers a warning due to the
call of a function that might sleep whilst the system is not
in a valid state to do so.
Move the allocation and free to points in the suspend and resume
process where they can call a function that might-sleep.
Signed-off-by: Ben Dooks <ben-linux@fluff.org>
Diffstat (limited to 'arch/arm/plat-s3c/pm-check.c')
| -rw-r--r-- | arch/arm/plat-s3c/pm-check.c | 20 |
1 files changed, 16 insertions, 4 deletions
diff --git a/arch/arm/plat-s3c/pm-check.c b/arch/arm/plat-s3c/pm-check.c index 183f1304bf58..39f2555564da 100644 --- a/arch/arm/plat-s3c/pm-check.c +++ b/arch/arm/plat-s3c/pm-check.c @@ -222,9 +222,21 @@ static u32 *s3c_pm_runcheck(struct resource *res, u32 *val) */ void s3c_pm_check_restore(void) { - if (crcs != NULL) { + if (crcs != NULL) s3c_pm_run_sysram(s3c_pm_runcheck, crcs); - kfree(crcs); - crcs = NULL; - } } + +/** + * s3c_pm_check_cleanup() - free memory resources + * + * Free the resources that where allocated by the suspend + * memory check code. We do this separately from the + * s3c_pm_check_restore() function as we cannot call any + * functions that might sleep during that resume. + */ +void s3c_pm_check_cleanup(void) +{ + kfree(crcs); + crcs = NULL; +} + |
