linux-kernel - [PATCH v1] misc: fastrpc: Create fastrpc scalar with correct buffer count

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Message-ID: <1686743685-21715-1-git-send-email-quic_ekangupt@quicinc.com>
Date:   Wed, 14 Jun 2023 17:24:45 +0530
From:   Ekansh Gupta <quic_ekangupt@...cinc.com>
To:     <srinivas.kandagatla@...aro.org>, <linux-arm-msm@...r.kernel.org>
CC:     Ekansh Gupta <quic_ekangupt@...cinc.com>,
        <ekangupt@....qualcomm.com>, <gregkh@...uxfoundation.org>,
        <linux-kernel@...r.kernel.org>,
        <fastrpc.upstream@....qualcomm.com>, stable <stable@...nel.org>
Subject: [PATCH v1] misc: fastrpc: Create fastrpc scalar with correct buffer count

A process can spawn a PD on DSP with some attributes that can be
associated with the PD during spawn and run. The invocation
corresponding to the create request with attributes has total
4 buffers at the DSP side implementation. If this number is not
correct, the invocation is expected to fail on DSP. Added change
to use correct number of buffer count for creating fastrpc scalar.

Fixes: d73f71c7c6ee ("misc: fastrpc: Add support for create remote init process")
Cc: stable <stable@...nel.org>
Tested-by: Ekansh Gupta <quic_ekangupt@...cinc.com>
Signed-off-by: Ekansh Gupta <quic_ekangupt@...cinc.com>
---
 drivers/misc/fastrpc.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/misc/fastrpc.c b/drivers/misc/fastrpc.c
index 30d4d04..37f32d2 100644
--- a/drivers/misc/fastrpc.c
+++ b/drivers/misc/fastrpc.c
@@ -1437,7 +1437,7 @@ static int fastrpc_init_create_process(struct fastrpc_user *fl,
 
 	sc = FASTRPC_SCALARS(FASTRPC_RMID_INIT_CREATE, 4, 0);
 	if (init.attrs)
-		sc = FASTRPC_SCALARS(FASTRPC_RMID_INIT_CREATE_ATTR, 6, 0);
+		sc = FASTRPC_SCALARS(FASTRPC_RMID_INIT_CREATE_ATTR, 4, 0);
 
 	err = fastrpc_internal_invoke(fl, true, FASTRPC_INIT_HANDLE,
 				      sc, args);
-- 
2.7.4