[PATCH v2 4/8] drivers: use new capable_or functionality

Christian Göttsche cgzones at googlemail.com
Mon May 2 16:00:25 UTC 2022


Use the new added capable_or function in appropriate cases, where a task
is required to have any of two capabilities.

Reorder CAP_SYS_ADMIN last.

Signed-off-by: Christian Göttsche <cgzones at googlemail.com>
---
 drivers/media/common/saa7146/saa7146_video.c     | 2 +-
 drivers/media/pci/bt8xx/bttv-driver.c            | 3 +--
 drivers/media/pci/saa7134/saa7134-video.c        | 3 +--
 drivers/media/platform/nxp/fsl-viu.c             | 2 +-
 drivers/media/test-drivers/vivid/vivid-vid-cap.c | 2 +-
 drivers/net/caif/caif_serial.c                   | 2 +-
 drivers/s390/block/dasd_eckd.c                   | 2 +-
 7 files changed, 7 insertions(+), 9 deletions(-)

diff --git a/drivers/media/common/saa7146/saa7146_video.c b/drivers/media/common/saa7146/saa7146_video.c
index 66215d9106a4..5eabc2e77cc2 100644
--- a/drivers/media/common/saa7146/saa7146_video.c
+++ b/drivers/media/common/saa7146/saa7146_video.c
@@ -470,7 +470,7 @@ static int vidioc_s_fbuf(struct file *file, void *fh, const struct v4l2_framebuf
 
 	DEB_EE("VIDIOC_S_FBUF\n");
 
-	if (!capable(CAP_SYS_ADMIN) && !capable(CAP_SYS_RAWIO))
+	if (!capable_or(CAP_SYS_RAWIO, CAP_SYS_ADMIN))
 		return -EPERM;
 
 	/* check args */
diff --git a/drivers/media/pci/bt8xx/bttv-driver.c b/drivers/media/pci/bt8xx/bttv-driver.c
index 5ca3d0cc653a..4143f380d44d 100644
--- a/drivers/media/pci/bt8xx/bttv-driver.c
+++ b/drivers/media/pci/bt8xx/bttv-driver.c
@@ -2569,8 +2569,7 @@ static int bttv_s_fbuf(struct file *file, void *f,
 	const struct bttv_format *fmt;
 	int retval;
 
-	if (!capable(CAP_SYS_ADMIN) &&
-		!capable(CAP_SYS_RAWIO))
+	if (!capable_or(CAP_SYS_RAWIO, CAP_SYS_ADMIN))
 		return -EPERM;
 
 	/* check args */
diff --git a/drivers/media/pci/saa7134/saa7134-video.c b/drivers/media/pci/saa7134/saa7134-video.c
index 48543ad3d595..684208ebfdbd 100644
--- a/drivers/media/pci/saa7134/saa7134-video.c
+++ b/drivers/media/pci/saa7134/saa7134-video.c
@@ -1798,8 +1798,7 @@ static int saa7134_s_fbuf(struct file *file, void *f,
 	struct saa7134_dev *dev = video_drvdata(file);
 	struct saa7134_format *fmt;
 
-	if (!capable(CAP_SYS_ADMIN) &&
-	   !capable(CAP_SYS_RAWIO))
+	if (!capable_or(CAP_SYS_RAWIO, CAP_SYS_ADMIN))
 		return -EPERM;
 
 	/* check args */
diff --git a/drivers/media/platform/nxp/fsl-viu.c b/drivers/media/platform/nxp/fsl-viu.c
index afc96f6db2a1..c5ed4c4a1587 100644
--- a/drivers/media/platform/nxp/fsl-viu.c
+++ b/drivers/media/platform/nxp/fsl-viu.c
@@ -803,7 +803,7 @@ static int vidioc_s_fbuf(struct file *file, void *priv, const struct v4l2_frameb
 	const struct v4l2_framebuffer *fb = arg;
 	struct viu_fmt *fmt;
 
-	if (!capable(CAP_SYS_ADMIN) && !capable(CAP_SYS_RAWIO))
+	if (!capable_or(CAP_SYS_RAWIO, CAP_SYS_ADMIN))
 		return -EPERM;
 
 	/* check args */
diff --git a/drivers/media/test-drivers/vivid/vivid-vid-cap.c b/drivers/media/test-drivers/vivid/vivid-vid-cap.c
index b9caa4b26209..a0cfcf6c22c4 100644
--- a/drivers/media/test-drivers/vivid/vivid-vid-cap.c
+++ b/drivers/media/test-drivers/vivid/vivid-vid-cap.c
@@ -1253,7 +1253,7 @@ int vivid_vid_cap_s_fbuf(struct file *file, void *fh,
 	if (dev->multiplanar)
 		return -ENOTTY;
 
-	if (!capable(CAP_SYS_ADMIN) && !capable(CAP_SYS_RAWIO))
+	if (!capable_or(CAP_SYS_RAWIO, CAP_SYS_ADMIN))
 		return -EPERM;
 
 	if (dev->overlay_cap_owner)
diff --git a/drivers/net/caif/caif_serial.c b/drivers/net/caif/caif_serial.c
index 688075859ae4..f17b618d8858 100644
--- a/drivers/net/caif/caif_serial.c
+++ b/drivers/net/caif/caif_serial.c
@@ -326,7 +326,7 @@ static int ldisc_open(struct tty_struct *tty)
 	/* No write no play */
 	if (tty->ops->write == NULL)
 		return -EOPNOTSUPP;
-	if (!capable(CAP_SYS_ADMIN) && !capable(CAP_SYS_TTY_CONFIG))
+	if (!capable_or(CAP_SYS_TTY_CONFIG, CAP_SYS_ADMIN))
 		return -EPERM;
 
 	/* release devices to avoid name collision */
diff --git a/drivers/s390/block/dasd_eckd.c b/drivers/s390/block/dasd_eckd.c
index 8410a25a65c1..9b5d22dd3e7b 100644
--- a/drivers/s390/block/dasd_eckd.c
+++ b/drivers/s390/block/dasd_eckd.c
@@ -5319,7 +5319,7 @@ static int dasd_symm_io(struct dasd_device *device, void __user *argp)
 	char psf0, psf1;
 	int rc;
 
-	if (!capable(CAP_SYS_ADMIN) && !capable(CAP_SYS_RAWIO))
+	if (!capable_or(CAP_SYS_RAWIO, CAP_SYS_ADMIN))
 		return -EACCES;
 	psf0 = psf1 = 0;
 
-- 
2.36.0



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