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From: Dan Carpenter <dan.carpenter@oracle.com>
To: Ben Skeggs <bskeggs@redhat.com>
Cc: David Airlie <airlied@linux.ie>,
	nouveau@lists.freedesktop.org, kernel-janitors@vger.kernel.org,
	linux-kernel@vger.kernel.org, dri-devel@lists.freedesktop.org
Subject: [PATCH] drm/nouveau/acr: fix a couple NULL vs IS_ERR() checks
Date: Thu, 18 Nov 2021 14:13:14 +0300	[thread overview]
Message-ID: <20211118111314.GB1147@kili> (raw)

The nvkm_acr_lsfw_add() function never returns NULL.  It returns error
pointers on error.

Fixes: 22dcda45a3d1 ("drm/nouveau/acr: implement new subdev to replace "secure boot"")
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
---
 drivers/gpu/drm/nouveau/nvkm/subdev/acr/gm200.c | 6 ++++--
 drivers/gpu/drm/nouveau/nvkm/subdev/acr/gp102.c | 6 ++++--
 2 files changed, 8 insertions(+), 4 deletions(-)

diff --git a/drivers/gpu/drm/nouveau/nvkm/subdev/acr/gm200.c b/drivers/gpu/drm/nouveau/nvkm/subdev/acr/gm200.c
index cdb1ead26d84..82b4c8e1457c 100644
--- a/drivers/gpu/drm/nouveau/nvkm/subdev/acr/gm200.c
+++ b/drivers/gpu/drm/nouveau/nvkm/subdev/acr/gm200.c
@@ -207,11 +207,13 @@ int
 gm200_acr_wpr_parse(struct nvkm_acr *acr)
 {
 	const struct wpr_header *hdr = (void *)acr->wpr_fw->data;
+	struct nvkm_acr_lsfw *lsfw;
 
 	while (hdr->falcon_id != WPR_HEADER_V0_FALCON_ID_INVALID) {
 		wpr_header_dump(&acr->subdev, hdr);
-		if (!nvkm_acr_lsfw_add(NULL, acr, NULL, (hdr++)->falcon_id))
-			return -ENOMEM;
+		lsfw = nvkm_acr_lsfw_add(NULL, acr, NULL, (hdr++)->falcon_id);
+		if (IS_ERR(lsfw))
+			return PTR_ERR(lsfw);
 	}
 
 	return 0;
diff --git a/drivers/gpu/drm/nouveau/nvkm/subdev/acr/gp102.c b/drivers/gpu/drm/nouveau/nvkm/subdev/acr/gp102.c
index fb9132a39bb1..fd97a935a380 100644
--- a/drivers/gpu/drm/nouveau/nvkm/subdev/acr/gp102.c
+++ b/drivers/gpu/drm/nouveau/nvkm/subdev/acr/gp102.c
@@ -161,11 +161,13 @@ int
 gp102_acr_wpr_parse(struct nvkm_acr *acr)
 {
 	const struct wpr_header_v1 *hdr = (void *)acr->wpr_fw->data;
+	struct nvkm_acr_lsfw *lsfw;
 
 	while (hdr->falcon_id != WPR_HEADER_V1_FALCON_ID_INVALID) {
 		wpr_header_v1_dump(&acr->subdev, hdr);
-		if (!nvkm_acr_lsfw_add(NULL, acr, NULL, (hdr++)->falcon_id))
-			return -ENOMEM;
+		lsfw = nvkm_acr_lsfw_add(NULL, acr, NULL, (hdr++)->falcon_id);
+		if (IS_ERR(lsfw))
+			return PTR_ERR(lsfw);
 	}
 
 	return 0;
-- 
2.20.1


WARNING: multiple messages have this Message-ID (diff)
From: Dan Carpenter <dan.carpenter@oracle.com>
To: Ben Skeggs <bskeggs@redhat.com>
Cc: David Airlie <airlied@linux.ie>,
	nouveau@lists.freedesktop.org, kernel-janitors@vger.kernel.org,
	linux-kernel@vger.kernel.org, dri-devel@lists.freedesktop.org,
	Daniel Vetter <daniel@ffwll.ch>
Subject: [Nouveau] [PATCH] drm/nouveau/acr: fix a couple NULL vs IS_ERR() checks
Date: Thu, 18 Nov 2021 14:13:14 +0300	[thread overview]
Message-ID: <20211118111314.GB1147@kili> (raw)

The nvkm_acr_lsfw_add() function never returns NULL.  It returns error
pointers on error.

Fixes: 22dcda45a3d1 ("drm/nouveau/acr: implement new subdev to replace "secure boot"")
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
---
 drivers/gpu/drm/nouveau/nvkm/subdev/acr/gm200.c | 6 ++++--
 drivers/gpu/drm/nouveau/nvkm/subdev/acr/gp102.c | 6 ++++--
 2 files changed, 8 insertions(+), 4 deletions(-)

diff --git a/drivers/gpu/drm/nouveau/nvkm/subdev/acr/gm200.c b/drivers/gpu/drm/nouveau/nvkm/subdev/acr/gm200.c
index cdb1ead26d84..82b4c8e1457c 100644
--- a/drivers/gpu/drm/nouveau/nvkm/subdev/acr/gm200.c
+++ b/drivers/gpu/drm/nouveau/nvkm/subdev/acr/gm200.c
@@ -207,11 +207,13 @@ int
 gm200_acr_wpr_parse(struct nvkm_acr *acr)
 {
 	const struct wpr_header *hdr = (void *)acr->wpr_fw->data;
+	struct nvkm_acr_lsfw *lsfw;
 
 	while (hdr->falcon_id != WPR_HEADER_V0_FALCON_ID_INVALID) {
 		wpr_header_dump(&acr->subdev, hdr);
-		if (!nvkm_acr_lsfw_add(NULL, acr, NULL, (hdr++)->falcon_id))
-			return -ENOMEM;
+		lsfw = nvkm_acr_lsfw_add(NULL, acr, NULL, (hdr++)->falcon_id);
+		if (IS_ERR(lsfw))
+			return PTR_ERR(lsfw);
 	}
 
 	return 0;
diff --git a/drivers/gpu/drm/nouveau/nvkm/subdev/acr/gp102.c b/drivers/gpu/drm/nouveau/nvkm/subdev/acr/gp102.c
index fb9132a39bb1..fd97a935a380 100644
--- a/drivers/gpu/drm/nouveau/nvkm/subdev/acr/gp102.c
+++ b/drivers/gpu/drm/nouveau/nvkm/subdev/acr/gp102.c
@@ -161,11 +161,13 @@ int
 gp102_acr_wpr_parse(struct nvkm_acr *acr)
 {
 	const struct wpr_header_v1 *hdr = (void *)acr->wpr_fw->data;
+	struct nvkm_acr_lsfw *lsfw;
 
 	while (hdr->falcon_id != WPR_HEADER_V1_FALCON_ID_INVALID) {
 		wpr_header_v1_dump(&acr->subdev, hdr);
-		if (!nvkm_acr_lsfw_add(NULL, acr, NULL, (hdr++)->falcon_id))
-			return -ENOMEM;
+		lsfw = nvkm_acr_lsfw_add(NULL, acr, NULL, (hdr++)->falcon_id);
+		if (IS_ERR(lsfw))
+			return PTR_ERR(lsfw);
 	}
 
 	return 0;
-- 
2.20.1


WARNING: multiple messages have this Message-ID (diff)
From: Dan Carpenter <dan.carpenter@oracle.com>
To: Ben Skeggs <bskeggs@redhat.com>
Cc: David Airlie <airlied@linux.ie>, Daniel Vetter <daniel@ffwll.ch>,
	Lyude Paul <lyude@redhat.com>,
	dri-devel@lists.freedesktop.org, nouveau@lists.freedesktop.org,
	linux-kernel@vger.kernel.org, kernel-janitors@vger.kernel.org
Subject: [PATCH] drm/nouveau/acr: fix a couple NULL vs IS_ERR() checks
Date: Thu, 18 Nov 2021 14:13:14 +0300	[thread overview]
Message-ID: <20211118111314.GB1147@kili> (raw)

The nvkm_acr_lsfw_add() function never returns NULL.  It returns error
pointers on error.

Fixes: 22dcda45a3d1 ("drm/nouveau/acr: implement new subdev to replace "secure boot"")
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
---
 drivers/gpu/drm/nouveau/nvkm/subdev/acr/gm200.c | 6 ++++--
 drivers/gpu/drm/nouveau/nvkm/subdev/acr/gp102.c | 6 ++++--
 2 files changed, 8 insertions(+), 4 deletions(-)

diff --git a/drivers/gpu/drm/nouveau/nvkm/subdev/acr/gm200.c b/drivers/gpu/drm/nouveau/nvkm/subdev/acr/gm200.c
index cdb1ead26d84..82b4c8e1457c 100644
--- a/drivers/gpu/drm/nouveau/nvkm/subdev/acr/gm200.c
+++ b/drivers/gpu/drm/nouveau/nvkm/subdev/acr/gm200.c
@@ -207,11 +207,13 @@ int
 gm200_acr_wpr_parse(struct nvkm_acr *acr)
 {
 	const struct wpr_header *hdr = (void *)acr->wpr_fw->data;
+	struct nvkm_acr_lsfw *lsfw;
 
 	while (hdr->falcon_id != WPR_HEADER_V0_FALCON_ID_INVALID) {
 		wpr_header_dump(&acr->subdev, hdr);
-		if (!nvkm_acr_lsfw_add(NULL, acr, NULL, (hdr++)->falcon_id))
-			return -ENOMEM;
+		lsfw = nvkm_acr_lsfw_add(NULL, acr, NULL, (hdr++)->falcon_id);
+		if (IS_ERR(lsfw))
+			return PTR_ERR(lsfw);
 	}
 
 	return 0;
diff --git a/drivers/gpu/drm/nouveau/nvkm/subdev/acr/gp102.c b/drivers/gpu/drm/nouveau/nvkm/subdev/acr/gp102.c
index fb9132a39bb1..fd97a935a380 100644
--- a/drivers/gpu/drm/nouveau/nvkm/subdev/acr/gp102.c
+++ b/drivers/gpu/drm/nouveau/nvkm/subdev/acr/gp102.c
@@ -161,11 +161,13 @@ int
 gp102_acr_wpr_parse(struct nvkm_acr *acr)
 {
 	const struct wpr_header_v1 *hdr = (void *)acr->wpr_fw->data;
+	struct nvkm_acr_lsfw *lsfw;
 
 	while (hdr->falcon_id != WPR_HEADER_V1_FALCON_ID_INVALID) {
 		wpr_header_v1_dump(&acr->subdev, hdr);
-		if (!nvkm_acr_lsfw_add(NULL, acr, NULL, (hdr++)->falcon_id))
-			return -ENOMEM;
+		lsfw = nvkm_acr_lsfw_add(NULL, acr, NULL, (hdr++)->falcon_id);
+		if (IS_ERR(lsfw))
+			return PTR_ERR(lsfw);
 	}
 
 	return 0;
-- 
2.20.1


             reply	other threads:[~2021-11-18 11:13 UTC|newest]

Thread overview: 9+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-11-18 11:13 Dan Carpenter [this message]
2021-11-18 11:13 ` [PATCH] drm/nouveau/acr: fix a couple NULL vs IS_ERR() checks Dan Carpenter
2021-11-18 11:13 ` [Nouveau] " Dan Carpenter
2021-11-18 22:45 ` Ben Skeggs
2021-11-18 22:45   ` Ben Skeggs
2021-11-18 22:45   ` Ben Skeggs
2021-11-23 19:35 ` Lyude Paul
2021-11-23 19:35   ` Lyude Paul
2021-11-23 19:35   ` [Nouveau] " Lyude Paul

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