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-rw-r--r--klibc-utils/resume.c9
1 files changed, 8 insertions, 1 deletions
diff --git a/klibc-utils/resume.c b/klibc-utils/resume.c
index 2bf50f9..8c4ab26 100644
--- a/klibc-utils/resume.c
+++ b/klibc-utils/resume.c
@@ -103,10 +103,17 @@ int resume_main(int argc UNUSED_PARAM, char **argv)
if (major(resume_device) == 0) {
bb_error_msg_and_die("invalid resume device: %s", argv[0]);
}
+
ofs = (argv[1] ? xstrtoull(argv[1], 0) : 0);
+ /* Old kernels have no /sys/power/resume_offset, set it only if necessary */
+ if (ofs != 0) {
+ fd = xopen("/sys/power/resume_offset", O_WRONLY);
+ s = xasprintf("%llu", ofs);
+ xwrite_str(fd, s);
+ }
fd = xopen("/sys/power/resume", O_WRONLY);
- s = xasprintf("%u:%u:%llu", major(resume_device), minor(resume_device), ofs);
+ s = xasprintf("%u:%u", major(resume_device), minor(resume_device));
xwrite_str(fd, s);
/* if write() returns, resume did not succeed */