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path: root/drivers/media/usb/pwc/pwc-if.c
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Diffstat (limited to 'drivers/media/usb/pwc/pwc-if.c')
-rw-r--r--drivers/media/usb/pwc/pwc-if.c7
1 files changed, 7 insertions, 0 deletions
diff --git a/drivers/media/usb/pwc/pwc-if.c b/drivers/media/usb/pwc/pwc-if.c
index 72704f4d5330..53c111bd5a22 100644
--- a/drivers/media/usb/pwc/pwc-if.c
+++ b/drivers/media/usb/pwc/pwc-if.c
@@ -76,6 +76,9 @@
76#include "pwc-dec23.h" 76#include "pwc-dec23.h"
77#include "pwc-dec1.h" 77#include "pwc-dec1.h"
78 78
79#define CREATE_TRACE_POINTS
80#include <trace/events/pwc.h>
81
79/* Function prototypes and driver templates */ 82/* Function prototypes and driver templates */
80 83
81/* hotplug device table support */ 84/* hotplug device table support */
@@ -260,6 +263,8 @@ static void pwc_isoc_handler(struct urb *urb)
260 int i, fst, flen; 263 int i, fst, flen;
261 unsigned char *iso_buf = NULL; 264 unsigned char *iso_buf = NULL;
262 265
266 trace_pwc_handler_enter(urb, pdev);
267
263 if (urb->status == -ENOENT || urb->status == -ECONNRESET || 268 if (urb->status == -ENOENT || urb->status == -ECONNRESET ||
264 urb->status == -ESHUTDOWN) { 269 urb->status == -ESHUTDOWN) {
265 PWC_DEBUG_OPEN("URB (%p) unlinked %ssynchronously.\n", 270 PWC_DEBUG_OPEN("URB (%p) unlinked %ssynchronously.\n",
@@ -348,6 +353,8 @@ static void pwc_isoc_handler(struct urb *urb)
348 } 353 }
349 354
350handler_end: 355handler_end:
356 trace_pwc_handler_exit(urb, pdev);
357
351 i = usb_submit_urb(urb, GFP_ATOMIC); 358 i = usb_submit_urb(urb, GFP_ATOMIC);
352 if (i != 0) 359 if (i != 0)
353 PWC_ERROR("Error (%d) re-submitting urb in pwc_isoc_handler.\n", i); 360 PWC_ERROR("Error (%d) re-submitting urb in pwc_isoc_handler.\n", i);