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hp_sdc: 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 23:47:39 -04:00
parent fd7e881699
commit f9f5796e7a
1 changed files with 1 additions and 5 deletions
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6
drivers/input/serio/hp_sdc.c
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@@ -1001,7 +1001,6 @@ static int __init hp_sdc_register(void)
uint8_t tq_init_seq[5]; uint8_t tq_init_seq[5];
struct semaphore tq_init_sem; struct semaphore tq_init_sem;
#if defined(__mc68000__) #if defined(__mc68000__)
mm_segment_t fs;
unsigned char i; unsigned char i;
#endif #endif
@@ -1026,11 +1025,8 @@ static int __init hp_sdc_register(void)
hp_sdc.base_io = (unsigned long) 0xf0428000; hp_sdc.base_io = (unsigned long) 0xf0428000;
hp_sdc.data_io = (unsigned long) hp_sdc.base_io + 1; hp_sdc.data_io = (unsigned long) hp_sdc.base_io + 1;
hp_sdc.status_io = (unsigned long) hp_sdc.base_io + 3; hp_sdc.status_io = (unsigned long) hp_sdc.base_io + 3;
fs = get_fs(); if (!probe_kernel_read(&i, (unsigned char *)hp_sdc.data_io, 1))
set_fs(KERNEL_DS);
if (!get_user(i, (unsigned char *)hp_sdc.data_io))
hp_sdc.dev = (void *)1; hp_sdc.dev = (void *)1;
set_fs(fs);
hp_sdc.dev_err = hp_sdc_init(); hp_sdc.dev_err = hp_sdc_init();
#endif #endif
if (hp_sdc.dev == NULL) { if (hp_sdc.dev == NULL) {