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hpfb: use probe_kernel_read()

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Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
This commit is contained in:
Al Viro 2017-05-26 23:44:41 -04:00
parent 2ea659a9ef
commit fd7e881699
1 changed files with 1 additions and 5 deletions
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6
drivers/video/fbdev/hpfb.c
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@ -377,7 +377,6 @@ static struct dio_driver hpfb_driver = {
int __init hpfb_init(void)
{
unsigned int sid;
mm_segment_t fs;
unsigned char i;
int err;
@ -402,10 +401,7 @@ int __init hpfb_init(void)
if (err)
return err;
fs = get_fs();
set_fs(KERNEL_DS);
err = get_user(i, (unsigned char *)INTFBVADDR + DIO_IDOFF);
set_fs(fs);
err = probe_kernel_read(&i, (unsigned char *)INTFBVADDR + DIO_IDOFF, 1);
if (!err && (i == DIO_ID_FBUFFER) && topcat_sid_ok(sid = DIO_SECID(INTFBVADDR))) {
if (!request_mem_region(INTFBPADDR, DIO_DEVSIZE, "Internal Topcat"))