Messages in this thread Patch in this message |  | | From | Shradha Gupta <> | Subject | [PATCH] kernel: power: swap: Suppress expected 'Image not found' error on Ubuntu | Date | Wed, 14 Dec 2022 22:20:26 -0800 |
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In 'systemctl hibernate' if resume device is written to the sysfs resume parameter, a software_resume() call is triggerred. This call is expected to fail in swsusp_check() call with -EBUSY error and an 'Image not found' error message. This fix suppresses the expected failure message from getting logged in Ubuntu setups where CONFIG_DYNAMIC_DEBUG is enabled by default.
Signed-off-by: Shradha Gupta <shradhagupta@linux.microsoft.com> --- kernel/power/swap.c | 8 ++++++++ 1 file changed, 8 insertions(+)
diff --git a/kernel/power/swap.c b/kernel/power/swap.c index 277434b6c0bf..9cbd3edc8339 100644 --- a/kernel/power/swap.c +++ b/kernel/power/swap.c @@ -1552,6 +1552,14 @@ int swsusp_check(void) pr_debug("Image signature found, resuming\n"); } else { error = PTR_ERR(hib_resume_bdev); + /* + * If this call is triggered by `systemctl hibernate`, the + * call is expected to fail with -EBUSY error. + * TODO: Figure out a better way to suppress the error msg + * in this case. + */ + if (error == -EBUSY) + return error; } if (error) -- 2.37.2
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