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Diffstat (limited to 'com32/gpllib/disk/write.c')
-rw-r--r--com32/gpllib/disk/write.c26
1 files changed, 19 insertions, 7 deletions
diff --git a/com32/gpllib/disk/write.c b/com32/gpllib/disk/write.c
index 89e530d9..d183adef 100644
--- a/com32/gpllib/disk/write.c
+++ b/com32/gpllib/disk/write.c
@@ -36,8 +36,17 @@ int write_sectors(const struct driveinfo *drive_info, const unsigned int lba,
const void *data, const int size)
{
com32sys_t inreg, outreg;
- struct ebios_dapa *dapa = __com32.cs_bounce;
- void *buf = (char *)__com32.cs_bounce + size;
+ struct ebios_dapa *dapa;
+ void *buf;
+ int rv = -1;
+
+ buf = lmalloc(size);
+ if (!buf)
+ return -1;
+
+ dapa = lmalloc(sizeof(*dapa));
+ if (!dapa)
+ goto out;
memcpy(buf, data, size);
memset(&inreg, 0, sizeof inreg);
@@ -59,7 +68,7 @@ int write_sectors(const struct driveinfo *drive_info, const unsigned int lba,
if (!drive_info->cbios) { // XXX errno
/* We failed to get the geometry */
if (lba)
- return -1; /* Can only write MBR */
+ goto out; /* Can only write MBR */
s = 1;
h = 0;
@@ -69,7 +78,7 @@ int write_sectors(const struct driveinfo *drive_info, const unsigned int lba,
// XXX errno
if (s > 63 || h > 256 || c > 1023)
- return -1;
+ goto out;
inreg.eax.w[0] = 0x0301; /* Write one sector */
inreg.ecx.b[1] = c & 0xff;
@@ -82,10 +91,13 @@ int write_sectors(const struct driveinfo *drive_info, const unsigned int lba,
/* Perform the write */
if (int13_retry(&inreg, &outreg)) {
- errno_disk = outreg.eax.b[1];
- return -1; /* Give up */
+ errno_disk = outreg.eax.b[1]; /* Give up */
} else
- return size;
+ rv = size;
+out:
+ lfree(dapa);
+ lfree(buf);
+ return rv;
}
/**