tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master head: 4b6c093e21d36bede0fd88fd0aeb3b03647260e4 commit: 80591e61a0f7e88deaada69844e4a31280c4a38f kbuild: tell sparse about the $ARCH date: 9 months ago config: s390-randconfig-m031-20200816 (attached as .config) compiler: s390-linux-gcc (GCC) 9.3.0
If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot <l...@intel.com>
New smatch warnings:
drivers/w1/slaves/w1_ds28e04.c:360 crccheck_store() warn: assigning (-48) to
unsigned variable 'val'
Old smatch warnings:
arch/s390/include/asm/uaccess.h:113 __put_user_fn() error: uninitialized symbol
'rc'.
arch/s390/include/asm/uaccess.h:143 __get_user_fn() error: uninitialized symbol
'rc'.
vim +/val +360 drivers/w1/slaves/w1_ds28e04.c
fbf7f7b4e2ae40 Markus Franke 2012-05-26 347
fa33a65a9cf7e2 Greg Kroah-Hartman 2013-08-21 348 static ssize_t
crccheck_store(struct device *dev, struct device_attribute *attr,
fbf7f7b4e2ae40 Markus Franke 2012-05-26 349
const char *buf, size_t count)
fbf7f7b4e2ae40 Markus Franke 2012-05-26 350 {
fbf7f7b4e2ae40 Markus Franke 2012-05-26 351 char val;
fbf7f7b4e2ae40 Markus Franke 2012-05-26 352
fbf7f7b4e2ae40 Markus Franke 2012-05-26 353 if (count != 1 || !buf)
fbf7f7b4e2ae40 Markus Franke 2012-05-26 354 return -EINVAL;
fbf7f7b4e2ae40 Markus Franke 2012-05-26 355
fbf7f7b4e2ae40 Markus Franke 2012-05-26 356 if (get_user(val, buf))
fbf7f7b4e2ae40 Markus Franke 2012-05-26 357 return -EFAULT;
fbf7f7b4e2ae40 Markus Franke 2012-05-26 358
fbf7f7b4e2ae40 Markus Franke 2012-05-26 359 /* convert to decimal */
fbf7f7b4e2ae40 Markus Franke 2012-05-26 @360 val = val - 0x30;
fbf7f7b4e2ae40 Markus Franke 2012-05-26 361 if (val != 0 && val !=
1)
fbf7f7b4e2ae40 Markus Franke 2012-05-26 362 return -EINVAL;
fbf7f7b4e2ae40 Markus Franke 2012-05-26 363
fbf7f7b4e2ae40 Markus Franke 2012-05-26 364 /* set the new value */
fbf7f7b4e2ae40 Markus Franke 2012-05-26 365 w1_enable_crccheck =
val;
fbf7f7b4e2ae40 Markus Franke 2012-05-26 366
fbf7f7b4e2ae40 Markus Franke 2012-05-26 367 return
sizeof(w1_enable_crccheck);
fbf7f7b4e2ae40 Markus Franke 2012-05-26 368 }
fbf7f7b4e2ae40 Markus Franke 2012-05-26 369
:::::: The code at line 360 was first introduced by commit
:::::: fbf7f7b4e2ae40f790828c86d31beff2d49e9ac8 w1: Add 1-wire slave device
driver for DS28E04-100
:::::: TO: Markus Franke <fr...@hrz.tu-chemnitz.de>
:::::: CC: Greg Kroah-Hartman <gre...@linuxfoundation.org>
---
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.config.gz
Description: application/gzip
