df54057156
commit 02a6982b0ccfcdc39e20016f5fc9a1b7826a6ee7 upstream. The check whether the TRB ring is full or empty in dwc3_calc_trbs_left() is insufficient. It assumes there are active TRBs if there's any request in the started_list. However, that's not the case for requests with a large SG list. That is, if we have a single usb request that requires more TRBs than the total TRBs in the TRB ring, the queued TRBs will be available when all the TRBs in the ring are completed. But the request is only partially completed and remains in the started_list. With the current logic, the TRB ring is empty, but dwc3_calc_trbs_left() returns 0. Fix this by additionally checking for the request->num_trbs for active TRB count. Cc: stable@vger.kernel.org Fixes: 51f1954ad853 ("usb: dwc3: gadget: Fix dwc3_calc_trbs_left()") Signed-off-by: Thinh Nguyen <Thinh.Nguyen@synopsys.com> Link: https://lore.kernel.org/r/708dc62b56b77da1f704cc2ae9b6ddb1f2dbef1f.1731545781.git.Thinh.Nguyen@synopsys.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> |
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| .. | ||
| core-exynos.h | ||
| core.c | ||
| core.h | ||
| debug.h | ||
| debugfs.c | ||
| drd.c | ||
| dwc3-exynos-otg.c | ||
| dwc3-exynos.c | ||
| dwc3-exynos.h | ||
| dwc3-haps.c | ||
| dwc3-imx8mp.c | ||
| dwc3-keystone.c | ||
| dwc3-meson-g12a.c | ||
| dwc3-of-simple.c | ||
| dwc3-omap.c | ||
| dwc3-pci.c | ||
| dwc3-qcom.c | ||
| dwc3-st.c | ||
| ep0.c | ||
| exynos-otg.h | ||
| exynos_usb_tpmon.c | ||
| exynos_usb_tpmon.h | ||
| gadget.c | ||
| gadget.h | ||
| host.c | ||
| io.h | ||
| Kconfig | ||
| Makefile | ||
| trace.c | ||
| trace.h | ||
| ulpi.c | ||