tree: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux-stable-rc.git linux-4.14.y head: bb01d00d3d36750e338cb76df7febc1f725a1cdd commit: 2d7c27957cac081eeacea7c38d8c9c59049883dc [9124/9999] media: usb: fix memory leak in af9005_identify_state config: x86_64-buildonly-randconfig-r004-20210630 (attached as .config) compiler: gcc-7 (Ubuntu 7.5.0-6ubuntu2) 7.5.0 reproduce (this is a W=1 build): # https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux-stable-rc.git/commit/?id=2d7c27957cac081eeacea7c38d8c9c59049883dc git remote add linux-stable-rc https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux-stable-rc.git git fetch --no-tags linux-stable-rc linux-4.14.y git checkout 2d7c27957cac081eeacea7c38d8c9c59049883dc # save the attached .config to linux build tree make W=1 ARCH=x86_64 If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <lkp@xxxxxxxxx> All warnings (new ones prefixed by >>): drivers/media/usb/dvb-usb/af9005.c: In function 'af9005_read_ofdm_register': drivers/media/usb/dvb-usb/af9005.c:153:32: warning: suggest braces around empty body in an 'else' statement [-Wempty-body] deb_reg("value %x\n", *value); ^ drivers/media/usb/dvb-usb/af9005.c: In function 'af9005_read_ofdm_registers': drivers/media/usb/dvb-usb/af9005.c:168:35: warning: suggest braces around empty body in an 'else' statement [-Wempty-body] debug_dump(values, len, deb_reg); ^ drivers/media/usb/dvb-usb/af9005.c: In function 'af9005_write_ofdm_register': drivers/media/usb/dvb-usb/af9005.c:183:18: warning: suggest braces around empty body in an 'else' statement [-Wempty-body] deb_reg("ok\n"); ^ drivers/media/usb/dvb-usb/af9005.c: In function 'af9005_write_ofdm_registers': drivers/media/usb/dvb-usb/af9005.c:200:18: warning: suggest braces around empty body in an 'else' statement [-Wempty-body] deb_reg("ok\n"); ^ drivers/media/usb/dvb-usb/af9005.c: In function 'af9005_identify_state': >> drivers/media/usb/dvb-usb/af9005.c:990:48: warning: suggest braces around empty body in an 'if' statement [-Wempty-body] deb_info("Identify state cold = %d\n", *cold); ^ vim +/if +990 drivers/media/usb/dvb-usb/af9005.c af4e067e1dcf92 drivers/media/dvb/dvb-usb/af9005.c Luca Olivetti 2007-05-07 965 af4e067e1dcf92 drivers/media/dvb/dvb-usb/af9005.c Luca Olivetti 2007-05-07 966 static int af9005_identify_state(struct usb_device *udev, af4e067e1dcf92 drivers/media/dvb/dvb-usb/af9005.c Luca Olivetti 2007-05-07 967 struct dvb_usb_device_properties *props, af4e067e1dcf92 drivers/media/dvb/dvb-usb/af9005.c Luca Olivetti 2007-05-07 968 struct dvb_usb_device_description **desc, af4e067e1dcf92 drivers/media/dvb/dvb-usb/af9005.c Luca Olivetti 2007-05-07 969 int *cold) af4e067e1dcf92 drivers/media/dvb/dvb-usb/af9005.c Luca Olivetti 2007-05-07 970 { af4e067e1dcf92 drivers/media/dvb/dvb-usb/af9005.c Luca Olivetti 2007-05-07 971 int ret; c58b84ee467bfd drivers/media/usb/dvb-usb/af9005.c Mauro Carvalho Chehab 2016-10-05 972 u8 reply, *buf; c58b84ee467bfd drivers/media/usb/dvb-usb/af9005.c Mauro Carvalho Chehab 2016-10-05 973 c58b84ee467bfd drivers/media/usb/dvb-usb/af9005.c Mauro Carvalho Chehab 2016-10-05 974 buf = kmalloc(FW_BULKOUT_SIZE + 2, GFP_KERNEL); c58b84ee467bfd drivers/media/usb/dvb-usb/af9005.c Mauro Carvalho Chehab 2016-10-05 975 if (!buf) c58b84ee467bfd drivers/media/usb/dvb-usb/af9005.c Mauro Carvalho Chehab 2016-10-05 976 return -ENOMEM; c58b84ee467bfd drivers/media/usb/dvb-usb/af9005.c Mauro Carvalho Chehab 2016-10-05 977 c58b84ee467bfd drivers/media/usb/dvb-usb/af9005.c Mauro Carvalho Chehab 2016-10-05 978 ret = af9005_boot_packet(udev, FW_CONFIG, &reply, c58b84ee467bfd drivers/media/usb/dvb-usb/af9005.c Mauro Carvalho Chehab 2016-10-05 979 buf, FW_BULKOUT_SIZE + 2); af4e067e1dcf92 drivers/media/dvb/dvb-usb/af9005.c Luca Olivetti 2007-05-07 980 if (ret) c58b84ee467bfd drivers/media/usb/dvb-usb/af9005.c Mauro Carvalho Chehab 2016-10-05 981 goto err; af4e067e1dcf92 drivers/media/dvb/dvb-usb/af9005.c Luca Olivetti 2007-05-07 982 deb_info("result of FW_CONFIG in identify state %d\n", reply); af4e067e1dcf92 drivers/media/dvb/dvb-usb/af9005.c Luca Olivetti 2007-05-07 983 if (reply == 0x01) af4e067e1dcf92 drivers/media/dvb/dvb-usb/af9005.c Luca Olivetti 2007-05-07 984 *cold = 1; af4e067e1dcf92 drivers/media/dvb/dvb-usb/af9005.c Luca Olivetti 2007-05-07 985 else if (reply == 0x02) af4e067e1dcf92 drivers/media/dvb/dvb-usb/af9005.c Luca Olivetti 2007-05-07 986 *cold = 0; af4e067e1dcf92 drivers/media/dvb/dvb-usb/af9005.c Luca Olivetti 2007-05-07 987 else 2d7c27957cac08 drivers/media/usb/dvb-usb/af9005.c Navid Emamdoost 2019-10-09 988 ret = -EIO; 2d7c27957cac08 drivers/media/usb/dvb-usb/af9005.c Navid Emamdoost 2019-10-09 989 if (!ret) af4e067e1dcf92 drivers/media/dvb/dvb-usb/af9005.c Luca Olivetti 2007-05-07 @990 deb_info("Identify state cold = %d\n", *cold); c58b84ee467bfd drivers/media/usb/dvb-usb/af9005.c Mauro Carvalho Chehab 2016-10-05 991 c58b84ee467bfd drivers/media/usb/dvb-usb/af9005.c Mauro Carvalho Chehab 2016-10-05 992 err: c58b84ee467bfd drivers/media/usb/dvb-usb/af9005.c Mauro Carvalho Chehab 2016-10-05 993 kfree(buf); c58b84ee467bfd drivers/media/usb/dvb-usb/af9005.c Mauro Carvalho Chehab 2016-10-05 994 return ret; af4e067e1dcf92 drivers/media/dvb/dvb-usb/af9005.c Luca Olivetti 2007-05-07 995 } af4e067e1dcf92 drivers/media/dvb/dvb-usb/af9005.c Luca Olivetti 2007-05-07 996 :::::: The code at line 990 was first introduced by commit :::::: af4e067e1dcf926d9523dff11e46c45fd9fa9da2 V4L/DVB (5625): Add support for the AF9005 demodulator from Afatech :::::: TO: Luca Olivetti <luca@xxxxxxxxxxx> :::::: CC: Mauro Carvalho Chehab <mchehab@xxxxxxxxxxxxx> --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@xxxxxxxxxxxx
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