diff options
| author | Xiaochen Wang <wangxiaochen0@gmail.com> | 2011-03-14 04:32:53 +0300 |
|---|---|---|
| committer | Mauro Carvalho Chehab <mchehab@redhat.com> | 2011-03-22 10:54:37 +0300 |
| commit | c05df8b32ab4b8103f8c20cbd3ab7191be613b68 (patch) | |
| tree | 3af2f634bd44ff82c1dda294e125edb2f3ac079a /drivers/media/video/pvrusb2 | |
| parent | 228ee5928b5d4192a23cda3fdf755a956516c13e (diff) | |
| download | linux-c05df8b32ab4b8103f8c20cbd3ab7191be613b68.tar.xz | |
[media] pvrusb2: check kmalloc return value
allows the driver to proceed and initialize the below two values
even if the kmalloc() fails.
hdw->std_info_enum.def.type_enum.value_names
hdw->std_info_enum.def.type_enum.count
Signed-off-by: Xiaochen Wang <wangxiaochen0@gmail.com>
Signed-off-by: Mike Isely <isely@pobox.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Diffstat (limited to 'drivers/media/video/pvrusb2')
| -rw-r--r-- | drivers/media/video/pvrusb2/pvrusb2-hdw.c | 24 |
1 files changed, 16 insertions, 8 deletions
diff --git a/drivers/media/video/pvrusb2/pvrusb2-hdw.c b/drivers/media/video/pvrusb2/pvrusb2-hdw.c index d33dd61de263..9d0dd08f57f8 100644 --- a/drivers/media/video/pvrusb2/pvrusb2-hdw.c +++ b/drivers/media/video/pvrusb2/pvrusb2-hdw.c @@ -2850,15 +2850,23 @@ static void pvr2_hdw_internal_set_std_avail(struct pvr2_hdw *hdw) PVR2_TRACE_ERROR_LEGS, "WARNING: Failed to identify any viable standards"); } + + /* Set up the dynamic control for this standard */ hdw->std_enum_names = kmalloc(sizeof(char *)*(std_cnt+1),GFP_KERNEL); - hdw->std_enum_names[0] = "none"; - for (idx = 0; idx < std_cnt; idx++) { - hdw->std_enum_names[idx+1] = - newstd[idx].name; - } - // Set up the dynamic control for this standard - hdw->std_info_enum.def.type_enum.value_names = hdw->std_enum_names; - hdw->std_info_enum.def.type_enum.count = std_cnt+1; + if (hdw->std_enum_names) { + hdw->std_enum_names[0] = "none"; + for (idx = 0; idx < std_cnt; idx++) + hdw->std_enum_names[idx+1] = newstd[idx].name; + hdw->std_info_enum.def.type_enum.value_names = + hdw->std_enum_names; + hdw->std_info_enum.def.type_enum.count = std_cnt+1; + } else { + pvr2_trace( + PVR2_TRACE_ERROR_LEGS, + "WARNING: Failed to alloc memory for names"); + hdw->std_info_enum.def.type_enum.value_names = NULL; + hdw->std_info_enum.def.type_enum.count = 0; + } hdw->std_defs = newstd; hdw->std_enum_cnt = std_cnt+1; hdw->std_enum_cur = 0; |