This is a note to let you know that I've just added the patch titled
misc: fastrpc: Mark all sessions as invalid in cb_remove
to the 5.15-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
misc-fastrpc-mark-all-sessions-as-invalid-in-cb_remove.patch
and it can be found in the queue-5.15 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
>From a4e61de63e34860c36a71d1a364edba16fb6203b Mon Sep 17 00:00:00 2001
From: Ekansh Gupta <quic_ekangupt@xxxxxxxxxxx>
Date: Mon, 8 Jan 2024 17:18:33 +0530
Subject: misc: fastrpc: Mark all sessions as invalid in cb_remove
From: Ekansh Gupta <quic_ekangupt@xxxxxxxxxxx>
commit a4e61de63e34860c36a71d1a364edba16fb6203b upstream.
In remoteproc shutdown sequence, rpmsg_remove will get called which
would depopulate all the child nodes that have been created during
rpmsg_probe. This would result in cb_remove call for all the context
banks for the remoteproc. In cb_remove function, session 0 is
getting skipped which is not correct as session 0 will never become
available again. Add changes to mark session 0 also as invalid.
Fixes: f6f9279f2bf0 ("misc: fastrpc: Add Qualcomm fastrpc basic driver model")
Cc: stable <stable@xxxxxxxxxx>
Signed-off-by: Ekansh Gupta <quic_ekangupt@xxxxxxxxxxx>
Link: https://lore.kernel.org/r/20240108114833.20480-1-quic_ekangupt@xxxxxxxxxxx
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
drivers/misc/fastrpc.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
--- a/drivers/misc/fastrpc.c
+++ b/drivers/misc/fastrpc.c
@@ -1594,7 +1594,7 @@ static int fastrpc_cb_remove(struct plat
int i;
spin_lock_irqsave(&cctx->lock, flags);
- for (i = 1; i < FASTRPC_MAX_SESSIONS; i++) {
+ for (i = 0; i < FASTRPC_MAX_SESSIONS; i++) {
if (cctx->session[i].sid == sess->sid) {
cctx->session[i].valid = false;
cctx->sesscount--;
Patches currently in stable-queue which might be from quic_ekangupt@xxxxxxxxxxx are
queue-5.15/misc-fastrpc-mark-all-sessions-as-invalid-in-cb_remove.patch
