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![]() init_freecom() is never called in atomic context. init_freecom() is set as ".initFunction" through UNUSUAL_DEV(). And ->initFunction() is only called by usb_stor_acquire_resources(), which is only called by usb_stor_probe2(). usb_stor_probe2() is called by *_probe() functions (like alauda_probe()) for each USB driver. *_probe() functions are set ".probe" in struct usb_driver. These functions are not called in atomic context. Despite never getting called from atomic context, init_freecom() calls mdelay() to busily wait. This is not necessary and can be replaced with msleep() to avoid busy waiting. This is found by a static analysis tool named DCNS written by myself. And I also manually check it. Signed-off-by: Jia-Ju Bai <baijiaju1990@gmail.com> Acked-by: Alan Stern <stern@rowland.harvard.edu> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> |
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.. | ||
alauda.c | ||
cypress_atacb.c | ||
datafab.c | ||
debug.c | ||
debug.h | ||
ene_ub6250.c | ||
freecom.c | ||
initializers.c | ||
initializers.h | ||
isd200.c | ||
jumpshot.c | ||
karma.c | ||
Kconfig | ||
Makefile | ||
onetouch.c | ||
option_ms.c | ||
option_ms.h | ||
protocol.c | ||
protocol.h | ||
realtek_cr.c | ||
scsiglue.c | ||
scsiglue.h | ||
sddr09.c | ||
sddr55.c | ||
shuttle_usbat.c | ||
sierra_ms.c | ||
sierra_ms.h | ||
transport.c | ||
transport.h | ||
uas-detect.h | ||
uas.c | ||
unusual_alauda.h | ||
unusual_cypress.h | ||
unusual_datafab.h | ||
unusual_devs.h | ||
unusual_ene_ub6250.h | ||
unusual_freecom.h | ||
unusual_isd200.h | ||
unusual_jumpshot.h | ||
unusual_karma.h | ||
unusual_onetouch.h | ||
unusual_realtek.h | ||
unusual_sddr09.h | ||
unusual_sddr55.h | ||
unusual_uas.h | ||
unusual_usbat.h | ||
usb.c | ||
usb.h | ||
usual-tables.c |