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The timeout parameter to NVGPU_COND_WAIT() was passed directly to wait_event_timeout(), which takes jiffies. Also allows zero timeout to disable timeout. The return value of NVGPU_COND_WAIT() was defined in a way specific to how Linux wait_event_() calls work. Replace that with proper error reporting and change the callers to check against error codes. JIRA NVGPU-14 Change-Id: Idbd2c8fbbef7589c3ca4f4c5732852bc71217515 Signed-off-by: Terje Bergstrom <tbergstrom@nvidia.com> Reviewed-on: http://git-master/r/1484927 Reviewed-by: mobile promotions <svcmobile_promotions@nvidia.com> Tested-by: mobile promotions <svcmobile_promotions@nvidia.com>