[PATCH 3/8] media: flexcop-usb: fix control-message timeouts

From: Johan Hovold
Date: Mon Oct 25 2021 - 08:17:38 EST


USB control-message timeouts are specified in milliseconds and should
specifically not vary with CONFIG_HZ.

Note that the driver was multiplying some of the timeout values with HZ
twice resulting in 3000-second timeouts with HZ=1000.

Also note that two of the timeout defines are currently unused.

Fixes: 2154be651b90 ("[media] redrat3: new rc-core IR transceiver device driver")
Cc: stable@xxxxxxxxxxxxxxx # 3.0
Signed-off-by: Johan Hovold <johan@xxxxxxxxxx>
---
drivers/media/usb/b2c2/flexcop-usb.c | 10 +++++-----
drivers/media/usb/b2c2/flexcop-usb.h | 12 ++++++------
2 files changed, 11 insertions(+), 11 deletions(-)

diff --git a/drivers/media/usb/b2c2/flexcop-usb.c b/drivers/media/usb/b2c2/flexcop-usb.c
index 5d38171b7638..bfeb92d93de3 100644
--- a/drivers/media/usb/b2c2/flexcop-usb.c
+++ b/drivers/media/usb/b2c2/flexcop-usb.c
@@ -87,7 +87,7 @@ static int flexcop_usb_readwrite_dw(struct flexcop_device *fc, u16 wRegOffsPCI,
0,
fc_usb->data,
sizeof(u32),
- B2C2_WAIT_FOR_OPERATION_RDW * HZ);
+ B2C2_WAIT_FOR_OPERATION_RDW);

if (ret != sizeof(u32)) {
err("error while %s dword from %d (%d).", read ? "reading" :
@@ -155,7 +155,7 @@ static int flexcop_usb_v8_memory_req(struct flexcop_usb *fc_usb,
wIndex,
fc_usb->data,
buflen,
- nWaitTime * HZ);
+ nWaitTime);
if (ret != buflen)
ret = -EIO;

@@ -248,13 +248,13 @@ static int flexcop_usb_i2c_req(struct flexcop_i2c_adapter *i2c,
/* DKT 020208 - add this to support special case of DiSEqC */
case USB_FUNC_I2C_CHECKWRITE:
pipe = B2C2_USB_CTRL_PIPE_OUT;
- nWaitTime = 2;
+ nWaitTime = 2000;
request_type |= USB_DIR_OUT;
break;
case USB_FUNC_I2C_READ:
case USB_FUNC_I2C_REPEATREAD:
pipe = B2C2_USB_CTRL_PIPE_IN;
- nWaitTime = 2;
+ nWaitTime = 2000;
request_type |= USB_DIR_IN;
break;
default:
@@ -281,7 +281,7 @@ static int flexcop_usb_i2c_req(struct flexcop_i2c_adapter *i2c,
wIndex,
fc_usb->data,
buflen,
- nWaitTime * HZ);
+ nWaitTime);

if (ret != buflen)
ret = -EIO;
diff --git a/drivers/media/usb/b2c2/flexcop-usb.h b/drivers/media/usb/b2c2/flexcop-usb.h
index 2f230bf72252..c7cca1a5ee59 100644
--- a/drivers/media/usb/b2c2/flexcop-usb.h
+++ b/drivers/media/usb/b2c2/flexcop-usb.h
@@ -91,13 +91,13 @@ typedef enum {
UTILITY_SRAM_TESTVERIFY = 0x16,
} flexcop_usb_utility_function_t;

-#define B2C2_WAIT_FOR_OPERATION_RW (1*HZ)
-#define B2C2_WAIT_FOR_OPERATION_RDW (3*HZ)
-#define B2C2_WAIT_FOR_OPERATION_WDW (1*HZ)
+#define B2C2_WAIT_FOR_OPERATION_RW 1000
+#define B2C2_WAIT_FOR_OPERATION_RDW 3000
+#define B2C2_WAIT_FOR_OPERATION_WDW 1000

-#define B2C2_WAIT_FOR_OPERATION_V8READ (3*HZ)
-#define B2C2_WAIT_FOR_OPERATION_V8WRITE (3*HZ)
-#define B2C2_WAIT_FOR_OPERATION_V8FLASH (3*HZ)
+#define B2C2_WAIT_FOR_OPERATION_V8READ 3000
+#define B2C2_WAIT_FOR_OPERATION_V8WRITE 3000
+#define B2C2_WAIT_FOR_OPERATION_V8FLASH 3000

typedef enum {
V8_MEMORY_PAGE_DVB_CI = 0x20,
--
2.32.0