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Revert "s390/mem_detect: do not update output parameters on failure"

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This reverts commit cbc29f107e51b1cc7d1e7b0bbe0691a1224205f1.

Get rid of the following smatch warnings:

arch/s390/include/asm/mem_detect.h:86 get_mem_detect_end() error: uninitialized symbol 'end'.
arch/s390/include/asm/mem_detect.h:86 get_mem_detect_end() error: uninitialized symbol 'end'.
arch/s390/boot/vmem.c:256 setup_vmem() error: uninitialized symbol 'start'.
arch/s390/boot/vmem.c:258 setup_vmem() error: uninitialized symbol 'end'.

Note that there is no bug in the code. This is purely to silence smatch.

Reported-by: kernel test robot <lkp@intel.com>
Reported-by: Dan Carpenter <error27@gmail.com>
Signed-off-by: Heiko Carstens <hca@linux.ibm.com>
This commit is contained in:
Heiko Carstens 2023-02-08 19:16:45 +01:00
parent be76ea6144
commit 2f09c2ea6c
1 changed files with 4 additions and 1 deletions
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5
arch/s390/include/asm/mem_detect.h
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@ -40,8 +40,11 @@ void add_mem_detect_block(u64 start, u64 end);
static inline int __get_mem_detect_block(u32 n, unsigned long *start,
unsigned long *end)
{
if (n >= mem_detect.count)
if (n >= mem_detect.count) {
*start = 0;
*end = 0;
return -1;
}
if (n < MEM_INLINED_ENTRIES) {
*start = (unsigned long)mem_detect.entries[n].start;