6.6-stable review patch. If anyone has any objections, please let me know.
------------------
From: Beleswar Padhi <b-padhi@xxxxxx>
commit 1dc7242f6ee0c99852cb90676d7fe201cf5de422 upstream.
In case of errors during core start operation from sysfs, the driver
directly returns with the -EPERM error code. Fix this to ensure that
mailbox channels are freed on error before returning by jumping to the
'put_mbox' error handling label. Similarly, jump to the 'out' error
handling label to return with required -EPERM error code during the
core stop operation from sysfs.
Fixes: 3c8a9066d584 ("remoteproc: k3-r5: Do not allow core1 to power up before core0 via sysfs")
Signed-off-by: Beleswar Padhi <b-padhi@xxxxxx>
Link: https://lore.kernel.org/r/20240506141849.1735679-1-b-padhi@xxxxxx
Signed-off-by: Mathieu Poirier <mathieu.poirier@xxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
drivers/remoteproc/ti_k3_r5_remoteproc.c | 6 ++++--
1 file changed, 4 insertions(+), 2 deletions(-)
--- a/drivers/remoteproc/ti_k3_r5_remoteproc.c
+++ b/drivers/remoteproc/ti_k3_r5_remoteproc.c
@@ -580,7 +580,8 @@ static int k3_r5_rproc_start(struct rpro
if (core != core0 && core0->rproc->state == RPROC_OFFLINE) {
dev_err(dev, "%s: can not start core 1 before core 0\n",
__func__);
- return -EPERM;
+ ret = -EPERM;
+ goto put_mbox;
}
ret = k3_r5_core_run(core);
@@ -648,7 +649,8 @@ static int k3_r5_rproc_stop(struct rproc
if (core != core1 && core1->rproc->state != RPROC_OFFLINE) {
dev_err(dev, "%s: can not stop core 0 before core 1\n",
__func__);
- return -EPERM;
+ ret = -EPERM;
+ goto out;
}
ret = k3_r5_core_halt(core);
