linux-kernel - [PATCH 5.12 358/384] media: venus: hfi_parser: Check for instance after hfi platform get

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Date:   Mon, 10 May 2021 12:22:27 +0200
From:   Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:     linux-kernel@...r.kernel.org
Cc:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        stable@...r.kernel.org,
        Stanimir Varbanov <stanimir.varbanov@...aro.org>,
        Bryan ODonoghue <bryan.odonoghue@...aro.org>,
        Mauro Carvalho Chehab <mchehab+huawei@...nel.org>
Subject: [PATCH 5.12 358/384] media: venus: hfi_parser: Check for instance after hfi platform get

From: Stanimir Varbanov <stanimir.varbanov@...aro.org>

commit 9b5d8fd580caa898c6e1b8605c774f2517f786ab upstream.

The inst function argument is != NULL only for Venus v1 and
we did not migrate v1 to a hfi_platform abstraction yet. So
check for instance != NULL only after hfi_platform_get returns
no error.

Fixes: e29929266be1 ("media: venus: Get codecs and capabilities from hfi platform")
Cc: stable@...r.kernel.org # v5.12
Signed-off-by: Stanimir Varbanov <stanimir.varbanov@...aro.org>
Tested-by: Bryan O'Donoghue <bryan.odonoghue@...aro.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@...nel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
---
 drivers/media/platform/qcom/venus/hfi_parser.c |    6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

--- a/drivers/media/platform/qcom/venus/hfi_parser.c
+++ b/drivers/media/platform/qcom/venus/hfi_parser.c
@@ -235,13 +235,13 @@ static int hfi_platform_parser(struct ve
 	u32 enc_codecs, dec_codecs, count = 0;
 	unsigned int entries;
 
-	if (inst)
-		return 0;
-
 	plat = hfi_platform_get(core->res->hfi_version);
 	if (!plat)
 		return -EINVAL;
 
+	if (inst)
+		return 0;
+
 	if (plat->codecs)
 		plat->codecs(&enc_codecs, &dec_codecs, &count);