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linux-user: Do not call get_errno() in do_brk() 

Later the returned value is compared with -1, and negated errno is not
expected.

Fixes: 00faf08c95 ("linux-user: Don't use MAP_FIXED in do_brk()")
Reviewed-by: Helge Deller <deller@gmx.de>
Signed-off-by: Akihiko Odaki <akihiko.odaki@daynix.com>
Message-Id: <20230802071754.14876-4-akihiko.odaki@daynix.com>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
This commit is contained in:
Akihiko Odaki 2023-08-02 16:17:49 +09:00 committed by Richard Henderson
parent ddcdd8c48f
commit c6cc059eca
1 changed files with 3 additions and 3 deletions
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6
linux-user/syscall.c
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@ -862,9 +862,9 @@ abi_long do_brk(abi_ulong brk_val)
*/
if (new_host_brk_page > brk_page) {
new_alloc_size = new_host_brk_page - brk_page;
mapped_addr = get_errno(target_mmap(brk_page, new_alloc_size,
PROT_READ|PROT_WRITE,
MAP_ANON|MAP_PRIVATE, 0, 0));
mapped_addr = target_mmap(brk_page, new_alloc_size,
PROT_READ | PROT_WRITE,
MAP_ANON | MAP_PRIVATE, -1, 0);
} else {
new_alloc_size = 0;
mapped_addr = brk_page;