scsi: ufs: core: Change the error check sequence for auto hibern8

Auto-hibern8 enter and exit are performed by the host controller without a
UIC command, and the auto-hibern8 idle timer only runs while no UIC command
is outstanding. An auto-hibern8 error (IS.UHES or IS.UHXS) is therefore
usually reported while hba->active_uic_cmd is NULL.

Since commit fcd8b0450a9a ("scsi: ufs: core: Make ufshcd_uic_cmd_compl()
easier to analyze"), ufshcd_uic_cmd_compl() returns early when
hba->active_uic_cmd is NULL, before ufshcd_is_auto_hibern8_error() is
called. Such auto-hibern8 errors are no longer recorded in hba->errors, so
ufshcd_check_errors() is not called for them and the error handler is not
scheduled.

Check for auto-hibern8 errors before checking for an active UIC command, as
was done before that commit, but keep returning early when there is no
active UIC command so that a NULL cmd is never dereferenced. Only report
the missing UIC command if no auto-hibern8 error was found.

Fixes: fcd8b0450a9a ("scsi: ufs: core: Make ufshcd_uic_cmd_compl() easier to analyze")
Cc: stable@vger.kernel.org # v6.13+
Signed-off-by: HOYOUNG SEO <hy50.seo@samsung.com>
Reviewed-by: Stanley Jhu <stanleyjhu@google.com>
Reviewed-by: Bean Huo <beanhuo@micron.com>
Reviewed-by: Bart Van Assche <bvanassche@acm.org>
Link: https://patch.msgid.link/20261027110357.3649301-1-hy50.seo@samsung.com
Signed-off-by: Martin K. Petersen (Oracle) <mkp@kernel.org>

0 files changed, 0 insertions, 0 deletions