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authorGeert Uytterhoeven <geert@linux-m68k.org>2013-05-09 14:01:05 +0200
committerSamuel Ortiz <sameo@linux.intel.com>2013-05-16 19:15:07 +0200
commit151978bf671dd2f741eab79c91d7d74bad49929c (patch)
tree5cdee5f5b224a4d950e7ac86a9ed92bf7a69fd4f /drivers/mfd
parentc34924b9503ca73ae36573d6ce08a34677c05081 (diff)
mfd: si476x: Use get_unaligned_be16() for unaligned be16 loads
Loading be16 values from byte buffers may cause unaligned accesses, so use get_unaligned_be16() to avoid problems on architectures that do not support these. Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org> Acked-by: Andrey Smirnov <andrew.smirnov@gmail.com> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
Diffstat (limited to 'drivers/mfd')
-rw-r--r--drivers/mfd/si476x-cmd.c28
1 files changed, 15 insertions, 13 deletions
diff --git a/drivers/mfd/si476x-cmd.c b/drivers/mfd/si476x-cmd.c
index f12f0163fef..6f1ef63086c 100644
--- a/drivers/mfd/si476x-cmd.c
+++ b/drivers/mfd/si476x-cmd.c
@@ -29,6 +29,8 @@
#include <linux/mfd/si476x-core.h>
+#include <asm/unaligned.h>
+
#define msb(x) ((u8)((u16) x >> 8))
#define lsb(x) ((u8)((u16) x & 0x00FF))
@@ -483,7 +485,7 @@ int si476x_core_cmd_get_property(struct si476x_core *core, u16 property)
if (err < 0)
return err;
else
- return be16_to_cpup((__be16 *)(resp + 2));
+ return get_unaligned_be16(resp + 2);
}
EXPORT_SYMBOL_GPL(si476x_core_cmd_get_property);
@@ -783,7 +785,7 @@ int si476x_core_cmd_am_rsq_status(struct si476x_core *core,
report->afcrl = 0x02 & resp[2];
report->valid = 0x01 & resp[2];
- report->readfreq = be16_to_cpup((__be16 *)(resp + 3));
+ report->readfreq = get_unaligned_be16(resp + 3);
report->freqoff = resp[5];
report->rssi = resp[6];
report->snr = resp[7];
@@ -944,7 +946,7 @@ int si476x_core_cmd_fm_rds_status(struct si476x_core *core,
report->tp = 0x20 & resp[3];
report->pty = 0x1f & resp[3];
- report->pi = be16_to_cpup((__be16 *)(resp + 4));
+ report->pi = get_unaligned_be16(resp + 4);
report->rdsfifoused = resp[6];
report->ble[V4L2_RDS_BLOCK_A] = 0xc0 & resp[7];
@@ -991,9 +993,9 @@ int si476x_core_cmd_fm_rds_blockcount(struct si476x_core *core,
SI476X_DEFAULT_TIMEOUT);
if (!err) {
- report->expected = be16_to_cpup((__be16 *)(resp + 2));
- report->received = be16_to_cpup((__be16 *)(resp + 4));
- report->uncorrectable = be16_to_cpup((__be16 *)(resp + 6));
+ report->expected = get_unaligned_be16(resp + 2);
+ report->received = get_unaligned_be16(resp + 4);
+ report->uncorrectable = get_unaligned_be16(resp + 6);
}
return err;
@@ -1210,7 +1212,7 @@ static int si476x_core_cmd_fm_rsq_status_a10(struct si476x_core *core,
report->afcrl = 0x02 & resp[2];
report->valid = 0x01 & resp[2];
- report->readfreq = be16_to_cpup((__be16 *)(resp + 3));
+ report->readfreq = get_unaligned_be16(resp + 3);
report->freqoff = resp[5];
report->rssi = resp[6];
report->snr = resp[7];
@@ -1218,7 +1220,7 @@ static int si476x_core_cmd_fm_rsq_status_a10(struct si476x_core *core,
report->hassi = resp[10];
report->mult = resp[11];
report->dev = resp[12];
- report->readantcap = be16_to_cpup((__be16 *)(resp + 13));
+ report->readantcap = get_unaligned_be16(resp + 13);
report->assi = resp[15];
report->usn = resp[16];
@@ -1264,7 +1266,7 @@ static int si476x_core_cmd_fm_rsq_status_a20(struct si476x_core *core,
report->afcrl = 0x02 & resp[2];
report->valid = 0x01 & resp[2];
- report->readfreq = be16_to_cpup((__be16 *)(resp + 3));
+ report->readfreq = get_unaligned_be16(resp + 3);
report->freqoff = resp[5];
report->rssi = resp[6];
report->snr = resp[7];
@@ -1272,7 +1274,7 @@ static int si476x_core_cmd_fm_rsq_status_a20(struct si476x_core *core,
report->hassi = resp[10];
report->mult = resp[11];
report->dev = resp[12];
- report->readantcap = be16_to_cpup((__be16 *)(resp + 13));
+ report->readantcap = get_unaligned_be16(resp + 13);
report->assi = resp[15];
report->usn = resp[16];
@@ -1320,7 +1322,7 @@ static int si476x_core_cmd_fm_rsq_status_a30(struct si476x_core *core,
report->afcrl = 0x02 & resp[2];
report->valid = 0x01 & resp[2];
- report->readfreq = be16_to_cpup((__be16 *)(resp + 3));
+ report->readfreq = get_unaligned_be16(resp + 3);
report->freqoff = resp[5];
report->rssi = resp[6];
report->snr = resp[7];
@@ -1329,7 +1331,7 @@ static int si476x_core_cmd_fm_rsq_status_a30(struct si476x_core *core,
report->hassi = resp[10];
report->mult = resp[11];
report->dev = resp[12];
- report->readantcap = be16_to_cpup((__be16 *)(resp + 13));
+ report->readantcap = get_unaligned_be16(resp + 13);
report->assi = resp[15];
report->usn = resp[16];
@@ -1337,7 +1339,7 @@ static int si476x_core_cmd_fm_rsq_status_a30(struct si476x_core *core,
report->rdsdev = resp[18];
report->assidev = resp[19];
report->strongdev = resp[20];
- report->rdspi = be16_to_cpup((__be16 *)(resp + 21));
+ report->rdspi = get_unaligned_be16(resp + 21);
return err;
}