From: Al Viro <viro@zeniv.linux.org.uk>
Date: Sat, 27 May 2017 03:47:39 +0000 (-0400)
Subject: hp_sdc: use probe_kernel_read()
X-Git-Tag: v4.13-rc1~123^2~1
X-Git-Url: https://git.karo-electronics.de/?a=commitdiff_plain;h=f9f5796e7a534cc99cee577be47e109d5123baf1;p=karo-tx-linux.git

hp_sdc: use probe_kernel_read()

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
---

diff --git a/drivers/input/serio/hp_sdc.c b/drivers/input/serio/hp_sdc.c
index 559c99ca6592..1bfdae4b0d99 100644
--- a/drivers/input/serio/hp_sdc.c
+++ b/drivers/input/serio/hp_sdc.c
@@ -1001,7 +1001,6 @@ static int __init hp_sdc_register(void)
 	uint8_t tq_init_seq[5];
 	struct semaphore tq_init_sem;
 #if defined(__mc68000__)
-	mm_segment_t fs;
 	unsigned char i;
 #endif
 
@@ -1026,11 +1025,8 @@ static int __init hp_sdc_register(void)
 	hp_sdc.base_io	 = (unsigned long) 0xf0428000;
 	hp_sdc.data_io	 = (unsigned long) hp_sdc.base_io + 1;
 	hp_sdc.status_io = (unsigned long) hp_sdc.base_io + 3;
-	fs = get_fs();
-	set_fs(KERNEL_DS);
-	if (!get_user(i, (unsigned char *)hp_sdc.data_io))
+	if (!probe_kernel_read(&i, (unsigned char *)hp_sdc.data_io, 1))
 		hp_sdc.dev = (void *)1;
-	set_fs(fs);
 	hp_sdc.dev_err   = hp_sdc_init();
 #endif
 	if (hp_sdc.dev == NULL) {