git: 79c4c4be9618 - main - mrsas: if controller reset is in progress, refrain from firing DCMDs to firmware in shutdown

The branch main has been updated by imp:

URL: https://cgit.FreeBSD.org/src/commit/?id=79c4c4be9618470711480f46ef2cd3a15c00cdd2

commit 79c4c4be9618470711480f46ef2cd3a15c00cdd2
Author:     Chandrakanth Patil <chandrakanth.patil@broadcom.com>
AuthorDate: 2022-01-21 09:24:37 +0000
Commit:     Warner Losh <imp@FreeBSD.org>
CommitDate: 2022-04-05 14:38:15 +0000

    mrsas: if controller reset is in progress, refrain from firing DCMDs to
    firmware in shutdown
    
    If controller reset is in progress, at same time if system shutdown is
    issued then corresponding shutdown function in driver will be invoked
    where driver is waiting 15 seconds to complete the controller reset.
    
    If the reset is not complteted within that time frame driver will go
    ahead and fire cache flush and shutdown DCMDs which will end up
    accessing the the queues which are not initialized due to undergoing
    reset leads to FMU error in firmware.
    
    Fix:
    In shutdown function, if controller reset is not finished within 15
    seconds than driver will return to the OS without firing any DCMDs.
    
    Reviewed by: imp
    PR: 261375
---
 sys/dev/mrsas/mrsas.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/sys/dev/mrsas/mrsas.c b/sys/dev/mrsas/mrsas.c
index 595dc3e340ae..b271ce6264b4 100644
--- a/sys/dev/mrsas/mrsas.c
+++ b/sys/dev/mrsas/mrsas.c
@@ -1166,6 +1166,7 @@ mrsas_shutdown(device_t dev)
 		if (sc->reset_in_progress) {
 			mrsas_dprint(sc, MRSAS_INFO,
 			    "gave up waiting for OCR to be finished\n");
+			return (0);
 		}
 	}