hollalinux
/
linux-sg2042
mirror of https://github.com/sophgo/linux-riscv.git
1
0
Fork 0
Code Issues Packages Projects Releases Wiki Activity

drm/nouveau/bios: return actual size of the buffer retrieved via _ROM 

Fixes detection of a failed attempt at fetching the entire ROM image
in one-shot (a violation of the spec, that works a lot of the time).

Tested on a HP Zbook 15 G2.

Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
This commit is contained in:
Ben Skeggs 2015-11-19 13:18:34 +10:00
parent 950950327b
commit 954329412e
1 changed files with 1 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

1
drivers/gpu/drm/nouveau/nouveau_acpi.c
View File

@ -367,6 +367,7 @@ static int nouveau_rom_call(acpi_handle rom_handle, uint8_t *bios,
return -ENODEV; return -ENODEV;
} }
obj = (union acpi_object *)buffer.pointer; obj = (union acpi_object *)buffer.pointer;
len = min(len, (int)obj->buffer.length);
memcpy(bios+offset, obj->buffer.pointer, len); memcpy(bios+offset, obj->buffer.pointer, len);
kfree(buffer.pointer); kfree(buffer.pointer);
return len; return len;