diff options
| author | Nicholas Mc Guire <hofrat@osadl.org> | 2018-09-09 19:02:32 +0300 |
|---|---|---|
| committer | Mauro Carvalho Chehab <mchehab+samsung@kernel.org> | 2018-09-24 16:32:56 +0300 |
| commit | c5d59528e24ad22500347b199d52b9368e686a42 (patch) | |
| tree | 98b25f660450d51ee89b1a04538259a0d6ccfd01 /drivers/media/pci/cx23885 | |
| parent | f347596f2bf114a3af3d80201c6e6bef538d884f (diff) | |
| download | linux-c5d59528e24ad22500347b199d52b9368e686a42.tar.xz | |
media: pci: cx23885: handle adding to list failure
altera_hw_filt_init() which calls append_internal() assumes
that the node was successfully linked in while in fact it can
silently fail. So the call-site needs to set return to -ENOMEM
on append_internal() returning NULL and exit through the err path.
Fixes: 349bcf02e361 ("[media] Altera FPGA based CI driver module")
Signed-off-by: Nicholas Mc Guire <hofrat@osadl.org>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
Diffstat (limited to 'drivers/media/pci/cx23885')
| -rw-r--r-- | drivers/media/pci/cx23885/altera-ci.c | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/drivers/media/pci/cx23885/altera-ci.c b/drivers/media/pci/cx23885/altera-ci.c index 62bc8049b320..198c05e83f5c 100644 --- a/drivers/media/pci/cx23885/altera-ci.c +++ b/drivers/media/pci/cx23885/altera-ci.c @@ -665,6 +665,10 @@ static int altera_hw_filt_init(struct altera_ci_config *config, int hw_filt_nr) } temp_int = append_internal(inter); + if (!temp_int) { + ret = -ENOMEM; + goto err; + } inter->filts_used = 1; inter->dev = config->dev; inter->fpga_rw = config->fpga_rw; @@ -699,6 +703,7 @@ err: __func__, ret); kfree(pid_filt); + kfree(inter); return ret; } @@ -733,6 +738,10 @@ int altera_ci_init(struct altera_ci_config *config, int ci_nr) } temp_int = append_internal(inter); + if (!temp_int) { + ret = -ENOMEM; + goto err; + } inter->cis_used = 1; inter->dev = config->dev; inter->fpga_rw = config->fpga_rw; @@ -801,6 +810,7 @@ err: ci_dbg_print("%s: Cannot initialize CI: Error %d.\n", __func__, ret); kfree(state); + kfree(inter); return ret; } |