diff options
Diffstat (limited to 'com32/gpllib/disk/write.c')
| -rw-r--r-- | com32/gpllib/disk/write.c | 26 |
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; } /** |