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matroxfb: fix size of memcpy 

commit 59921b2390 upstream.

hw->DACreg has a size of 80 bytes and MGADACbpp32 has 21. So when
memcpy copies MGADACbpp32 to hw->DACreg it copies 80 bytes but
only 21 bytes are valid.

Signed-off-by: Sudip Mukherjee <sudip.mukherjee@codethink.co.uk>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Sudip Mukherjee 2016-08-25 23:14:12 +05:30 committed by Greg Kroah-Hartman
parent dc4bc70259
commit ed8c3cb1e6
1 changed files with 1 additions and 1 deletions
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2
drivers/video/fbdev/matrox/matroxfb_Ti3026.c
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@ -372,7 +372,7 @@ static int Ti3026_init(struct matrox_fb_info *minfo, struct my_timming *m)
DBG(__func__)
memcpy(hw->DACreg, MGADACbpp32, sizeof(hw->DACreg));
memcpy(hw->DACreg, MGADACbpp32, sizeof(MGADACbpp32));
switch (minfo->fbcon.var.bits_per_pixel) {
case 4: hw->DACreg[POS3026_XLATCHCTRL] = TVP3026_XLATCHCTRL_16_1; /* or _8_1, they are same */
hw->DACreg[POS3026_XTRUECOLORCTRL] = TVP3026_XTRUECOLORCTRL_PSEUDOCOLOR;