From: Tony Lindgren <tony@xxxxxxxxxxx>
commit af5d44de571811a151510bfd1236407b7f551cd9 upstream.
Only the used bits get cleared with bitmap_zero() when we call
gpiod_get_array_value_cansleep(). We must mask only the bits we're
using for ddata->status as the other bits in the bitmap may not be
initialized.
And let's also drop useless debug code accidentally left over while
at it.
Fixes: b9762bebc633 ("gpiolib: Pass bitmaps, not integer arrays, to get/set array")
Cc: Jacopo Mondi <jacopo@xxxxxxxxxx>
Cc: Janusz Krzysztofik <jmkrzyszt@xxxxxxxxx>
Cc: Linus Walleij <linus.walleij@xxxxxxxxxx>
Cc: Marcel Partap <mpartap@xxxxxxx>
Cc: Merlijn Wajer <merlijn@xxxxxxxxxx>
Cc: Michael Scott <hashcode0f@xxxxxxxxx>
Cc: NeKit <nekit1000@xxxxxxxxx>
Cc: Pavel Machek <pavel@xxxxxx>
Cc: Sebastian Reichel <sre@xxxxxxxxxx>
Signed-off-by: Tony Lindgren <tony@xxxxxxxxxxx>
Signed-off-by: Kishon Vijay Abraham I <kishon@xxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
drivers/phy/motorola/phy-mapphone-mdm6600.c | 11 +++--------
1 file changed, 3 insertions(+), 8 deletions(-)
--- a/drivers/phy/motorola/phy-mapphone-mdm6600.c
+++ b/drivers/phy/motorola/phy-mapphone-mdm6600.c
@@ -200,7 +200,7 @@ static void phy_mdm6600_status(struct wo
struct phy_mdm6600 *ddata;
struct device *dev;
DECLARE_BITMAP(values, PHY_MDM6600_NR_STATUS_LINES);
- int error, i, val = 0;
+ int error;
ddata = container_of(work, struct phy_mdm6600, status_work.work);
dev = ddata->dev;
@@ -212,16 +212,11 @@ static void phy_mdm6600_status(struct wo
if (error)
return;
- for (i = 0; i < PHY_MDM6600_NR_STATUS_LINES; i++) {
- val |= test_bit(i, values) << i;
- dev_dbg(ddata->dev, "XXX %s: i: %i values[i]: %i val: %i\n",
- __func__, i, test_bit(i, values), val);
- }
- ddata->status = values[0];
+ ddata->status = values[0] & ((1 << PHY_MDM6600_NR_STATUS_LINES) - 1);
dev_info(dev, "modem status: %i %s\n",
ddata->status,
- phy_mdm6600_status_name[ddata->status & 7]);
+ phy_mdm6600_status_name[ddata->status]);
complete(&ddata->ack);
}
