From 0736cc0e67fb4c5450e62a4f857322b42e0fbc44 Mon Sep 17 00:00:00 2001 From: Christian Marangi Date: Thu, 11 May 2023 08:18:56 +0200 Subject: [PATCH] kernel: ltq-atm: add patch fixing compilation warning for ltq_atm Fix compilation warning caused by copy_from_user ret not handled. Fix compilation warning: /__w/openwrt/openwrt/openwrt/build_dir/target-mips-openwrt-linux-musl_musl/linux-lantiq_ase/ltq-atm-ase/ltq-atm/ltq_atm.c: In function 'ppe_ioctl': /__w/openwrt/openwrt/openwrt/build_dir/target-mips-openwrt-linux-musl_musl/linux-lantiq_ase/ltq-atm-ase/ltq-atm/ltq_atm.c:341:17: error: ignoring return value of 'copy_from_user' declared with attribute 'warn_unused_result' [-Werror=unused-result] 341 | copy_from_user(&mib_vcc, arg, sizeof(mib_vcc)); | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ cc1: all warnings being treated as errors Signed-off-by: Christian Marangi --- .../100-ltq_atm-fix-compillation-warning.patch | 12 ++++++++++++ 1 file changed, 12 insertions(+) create mode 100644 package/kernel/lantiq/ltq-atm/patches/100-ltq_atm-fix-compillation-warning.patch diff --git a/package/kernel/lantiq/ltq-atm/patches/100-ltq_atm-fix-compillation-warning.patch b/package/kernel/lantiq/ltq-atm/patches/100-ltq_atm-fix-compillation-warning.patch new file mode 100644 index 000000000000..c74cfcb6b4d5 --- /dev/null +++ b/package/kernel/lantiq/ltq-atm/patches/100-ltq_atm-fix-compillation-warning.patch @@ -0,0 +1,12 @@ +--- a/ltq_atm.c ++++ b/ltq_atm.c +@@ -338,7 +338,8 @@ static int ppe_ioctl(struct atm_dev *dev + break; + + case PPE_ATM_MIB_VCC: /* VCC related MIB */ +- copy_from_user(&mib_vcc, arg, sizeof(mib_vcc)); ++ if (copy_from_user(&mib_vcc, arg, sizeof(mib_vcc))) ++ return -EFAULT; + conn = find_vpivci(mib_vcc.vpi, mib_vcc.vci); + if (conn >= 0) { + mib_vcc.mib_vcc.aal5VccCrcErrors = g_atm_priv_data.conn[conn].aal5_vcc_crc_err; -- 2.30.2