kernel/drivers/media/i2c/ccs/ccs-data.c, branch linux-6.9.y

media: i2c: ccs: Check rules is non-NULL

2023-08-14T18:27:58Z

Fix the following smatch warning: drivers/media/i2c/ccs/ccs-data.c:524 ccs_data_parse_rules() warn: address of NULL pointer 'rules' The CCS static data rule parser does not check an if rule has been obtained before checking for other rule types (which depend on the if rule). In practice this means parsing invalid CCS static data could lead to dereferencing a NULL pointer. Reported-by: Hans Verkuil Fixes: a6b396f410b1 ("media: ccs: Add CCS static data parser library") Cc: stable@vger.kernel.org # for 5.11 and up Signed-off-by: Sakari Ailus Signed-off-by: Mauro Carvalho Chehab

Merge tag 'v5.11-rc6' into patchwork

2021-02-01T09:03:45Z

Linux 5.11-rc6 * tag 'v5.11-rc6': (1466 commits) Linux 5.11-rc6 leds: rt8515: Add Richtek RT8515 LED driver dt-bindings: leds: Add DT binding for Richtek RT8515 leds: trigger: fix potential deadlock with libata leds: leds-ariel: convert comma to semicolon leds: leds-lm3533: convert comma to semicolon dt-bindings: Cleanup standard unit properties soc: litex: Properly depend on HAS_IOMEM tty: avoid using vfs_iocb_iter_write() for redirected console writes null_blk: cleanup zoned mode initialization cifs: fix dfs domain referrals drm/nouveau/kms/gk104-gp1xx: Fix > 64x64 cursors drm/nouveau/kms/nv50-: Report max cursor size to userspace drivers/nouveau/kms/nv50-: Reject format modifiers for cursor planes drm/nouveau/svm: fail NOUVEAU_SVM_INIT ioctl on unsupported devices drm/nouveau/dispnv50: Restore pushing of all data. io_uring: reinforce cancel on flush during exit cifs: returning mount parm processing errors correctly rxrpc: Fix memory leak in rxrpc_lookup_local mlxsw: spectrum_span: Do not overwrite policer configuration ...

media: ccs: Make (non-)use of uninitialised variables more robust

2021-01-14T12:50:33Z

GCC with W=2 level of kernel compiler warnings warns about the use of uninitialised variables in a few locations. While these uninitialised variables were not used in reality, this still produced compiler warnings. Address this by assigning the variables to NULL and checking for NULL in places it is not expected, returning -EIO in that case. This provides at least some sanity checking at runtime as the compiler appears unable to do that at compile time. Reported-by: Hans Verkuil Signed-off-by: Sakari Ailus Signed-off-by: Hans Verkuil Signed-off-by: Mauro Carvalho Chehab

media: ccs: Small definition cleanup

2021-01-12T16:57:08Z

struct device is used in ccs-data.h but no definition is included. Add a forward definition. Also ccs-data.c includes linux/types.h but this is already included in ccs-data.h which ccs-data.c includes. Do don't include linux/types.h in ccs-data.c. Signed-off-by: Sakari Ailus Signed-off-by: Mauro Carvalho Chehab

media: ccs: Get static data version minor correctly

2021-01-07T14:47:51Z

Fix obtaining CCS static data version minor part correctly. Instead, the upper 8 bits were obtained from the major version number. Fixes: a6b396f410b1 ("media: ccs: Add CCS static data parser library") Signed-off-by: Sakari Ailus Signed-off-by: Mauro Carvalho Chehab

media: ccs: Add CCS static data parser library

2020-12-03T11:27:28Z

Add a parser library for parsing the CCS static data format. The library may be also compiled in user space as the format has uses also in the user space. Therefore it is dual licensed under the 3-clause BSD license as well. Signed-off-by: Sakari Ailus Signed-off-by: Mauro Carvalho Chehab